You are an assistant tasked with analyzing measurement histories to predict the patient's next laboratory or vital sign value.
<PatientData>
Demographics: {'race': 'White', 'gender': 'FEMALE', 'year of birth': 1935}
Prior Diagnosis 1: {'condition': 'Prediabetes', 'condition status': 'Not Extracted', 'start date': '1954-08-11', 'end date': None}
Prior Diagnosis 2: {'condition': 'Localized  primary osteoarthritis of the hand', 'condition status': 'Not Extracted', 'start date': '1965-10-04', 'end date': None}
Prior Diagnosis 3: {'condition': 'Concussion with no loss of consciousness', 'condition status': 'Not Extracted', 'start date': '2010-09-23', 'end date': '2010-11-01'}
Last Urea Nitrogen measurement on 2011-09-24 00:00:00: {'measurement': 'Urea Nitrogen', 'measurement type': 'EHR encounter record', 'measurement date': '2011-09-24T00:00:00', 'unit': 'mg/dL', 'value': 14.0}
Prior measurements of the same type 1: {'measurement': 'Urea Nitrogen', 'measurement type': 'EHR encounter record', 'measurement date': '2010-09-12T00:00:00', 'unit': 'mg/dL', 'value': 16.0}
Prior measurements of the same type 2: {'measurement': 'Urea Nitrogen', 'measurement type': 'EHR encounter record', 'measurement date': '2011-09-24T00:00:00', 'unit': 'mg/dL', 'value': 14.0}
Prior measurements of different types 1: {'measurement': 'Hemoglobin A1c/Hemoglobin.total in Blood', 'measurement type': 'EHR encounter record', 'measurement date': '2010-09-12T00:00:00', 'unit': '%', 'value': 6.3}
Prior measurements of different types 2: {'measurement': 'Body Height', 'measurement type': 'EHR encounter record', 'measurement date': '2010-09-12T00:00:00', 'unit': 'cm', 'value': 151.11}
Prior measurements of different types 3: {'measurement': 'Body Weight', 'measurement type': 'EHR encounter record', 'measurement date': '2010-09-12T00:00:00', 'unit': 'kg', 'value': 89.31}
Prior measurements of different types 4: {'measurement': 'Body Mass Index', 'measurement type': 'EHR encounter record', 'measurement date': '2010-09-12T00:00:00', 'unit': 'kg/m2', 'value': 39.11}
Prior measurements of different types 5: {'measurement': 'Systolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2010-09-12T00:00:00', 'unit': 'mmHg', 'value': 106.0}
Prior measurements of different types 6: {'measurement': 'Diastolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2010-09-12T00:00:00', 'unit': 'mmHg', 'value': 88.0}
Prior measurements of different types 7: {'measurement': 'Hemoglobin A1c/Hemoglobin.total in Blood', 'measurement type': 'EHR encounter record', 'measurement date': '2010-09-12T00:00:00', 'unit': '%', 'value': 6.3}
Prior measurements of different types 8: {'measurement': 'Glucose', 'measurement type': 'EHR encounter record', 'measurement date': '2010-09-12T00:00:00', 'unit': 'mg/dL', 'value': 97.0}
Prior measurements of different types 9: {'measurement': 'Creatinine', 'measurement type': 'EHR encounter record', 'measurement date': '2010-09-12T00:00:00', 'unit': 'mg/dL', 'value': 1.0}
Prior measurements of different types 10: {'measurement': 'Calcium', 'measurement type': 'EHR encounter record', 'measurement date': '2010-09-12T00:00:00', 'unit': 'mg/dL', 'value': 9.1}
Prior measurements of different types 11: {'measurement': 'Sodium', 'measurement type': 'EHR encounter record', 'measurement date': '2010-09-12T00:00:00', 'unit': 'mmol/L', 'value': 137.0}
Prior measurements of different types 12: {'measurement': 'Potassium', 'measurement type': 'EHR encounter record', 'measurement date': '2010-09-12T00:00:00', 'unit': 'mmol/L', 'value': 4.39}
Prior measurements of different types 13: {'measurement': 'Chloride', 'measurement type': 'EHR encounter record', 'measurement date': '2010-09-12T00:00:00', 'unit': 'mmol/L', 'value': 105.0}
Prior measurements of different types 14: {'measurement': 'Carbon Dioxide', 'measurement type': 'EHR encounter record', 'measurement date': '2010-09-12T00:00:00', 'unit': 'mmol/L', 'value': 26.0}
Prior measurements of different types 15: {'measurement': 'Total Cholesterol', 'measurement type': 'EHR encounter record', 'measurement date': '2010-09-12T00:00:00', 'unit': 'mg/dL', 'value': 172.0}
Prior measurements of different types 16: {'measurement': 'Triglycerides', 'measurement type': 'EHR encounter record', 'measurement date': '2010-09-12T00:00:00', 'unit': 'mg/dL', 'value': 118.0}
Prior measurements of different types 17: {'measurement': 'Low Density Lipoprotein Cholesterol', 'measurement type': 'EHR encounter record', 'measurement date': '2010-09-12T00:00:00', 'unit': 'mg/dL', 'value': 71.0}
Prior measurements of different types 18: {'measurement': 'High Density Lipoprotein Cholesterol', 'measurement type': 'EHR encounter record', 'measurement date': '2010-09-12T00:00:00', 'unit': 'mg/dL', 'value': 77.0}
Prior measurements of different types 19: {'measurement': 'Hemoglobin A1c/Hemoglobin.total in Blood', 'measurement type': 'EHR encounter record', 'measurement date': '2011-09-24T00:00:00', 'unit': '%', 'value': 5.9}
Prior measurements of different types 20: {'measurement': 'Body Height', 'measurement type': 'EHR encounter record', 'measurement date': '2011-09-24T00:00:00', 'unit': 'cm', 'value': 151.11}
Prior measurements of different types 21: {'measurement': 'Body Weight', 'measurement type': 'EHR encounter record', 'measurement date': '2011-09-24T00:00:00', 'unit': 'kg', 'value': 87.8}
Prior measurements of different types 22: {'measurement': 'Body Mass Index', 'measurement type': 'EHR encounter record', 'measurement date': '2011-09-24T00:00:00', 'unit': 'kg/m2', 'value': 38.45}
Prior measurements of different types 23: {'measurement': 'Systolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2011-09-24T00:00:00', 'unit': 'mmHg', 'value': 125.0}
Prior measurements of different types 24: {'measurement': 'Diastolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2011-09-24T00:00:00', 'unit': 'mmHg', 'value': 83.0}
Prior measurements of different types 25: {'measurement': 'Hemoglobin A1c/Hemoglobin.total in Blood', 'measurement type': 'EHR encounter record', 'measurement date': '2011-09-24T00:00:00', 'unit': '%', 'value': 5.9}
Prior measurements of different types 26: {'measurement': 'Glucose', 'measurement type': 'EHR encounter record', 'measurement date': '2011-09-24T00:00:00', 'unit': 'mg/dL', 'value': 64.0}
Prior measurements of different types 27: {'measurement': 'Creatinine', 'measurement type': 'EHR encounter record', 'measurement date': '2011-09-24T00:00:00', 'unit': 'mg/dL', 'value': 1.0}
Prior measurements of different types 28: {'measurement': 'Calcium', 'measurement type': 'EHR encounter record', 'measurement date': '2011-09-24T00:00:00', 'unit': 'mg/dL', 'value': 8.84}
Prior measurements of different types 29: {'measurement': 'Sodium', 'measurement type': 'EHR encounter record', 'measurement date': '2011-09-24T00:00:00', 'unit': 'mmol/L', 'value': 139.0}
Prior measurements of different types 30: {'measurement': 'Potassium', 'measurement type': 'EHR encounter record', 'measurement date': '2011-09-24T00:00:00', 'unit': 'mmol/L', 'value': 5.07}
Prior measurements of different types 31: {'measurement': 'Chloride', 'measurement type': 'EHR encounter record', 'measurement date': '2011-09-24T00:00:00', 'unit': 'mmol/L', 'value': 108.0}
Prior measurements of different types 32: {'measurement': 'Carbon Dioxide', 'measurement type': 'EHR encounter record', 'measurement date': '2011-09-24T00:00:00', 'unit': 'mmol/L', 'value': 26.0}
Visit 1: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2010-09-12', 'end datetime': '2010-09-12'}
Visit 2: {'visit': 'Emergency Room Visit', 'visit type': 'EHR encounter record', 'start datetime': '2010-09-23', 'end datetime': '2010-09-23'}
Visit 3: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2010-11-01', 'end datetime': '2010-11-01'}
Visit 4: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2011-04-28', 'end datetime': '2011-04-28'}
Visit 5: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2011-09-24', 'end datetime': '2011-09-24'}
Medication 1: {'Drug name': 'Naproxen sodium 220 MG [Aleve]', 'Start datetime': '1965-10-04', 'End datetime': '1965-10-04', 'Route': None, 'Quantity': 'Not Extracted', 'Stop Reason': 'Not Extracted', 'Dose Unit': 'Not Extracted'}
Medication 2: {'Drug name': 'Penicillin V Potassium 500 MG', 'Start datetime': '1976-12-19', 'End datetime': '1976-12-19', 'Route': None, 'Quantity': 'Not Extracted', 'Stop Reason': 'Not Extracted', 'Dose Unit': 'Not Extracted'}
Medication 3: {'Drug name': 'Penicillin V Potassium 500 MG', 'Start datetime': '2000-06-16', 'End datetime': '2000-06-16', 'Route': None, 'Quantity': 'Not Extracted', 'Stop Reason': 'Not Extracted', 'Dose Unit': 'Not Extracted'}
Procedure 1: {'procedure': 'Documentation of current medications', 'procedure type': 'EHR encounter record', 'procedure start datetime': '2010-09-12', 'procedure end datetime': 'Not Extracted', 'modifier': 'Not Extracted'}
Procedure 2: {'procedure': 'Colonoscopy', 'procedure type': 'EHR encounter record', 'procedure start datetime': '2011-04-28', 'procedure end datetime': 'Not Extracted', 'modifier': 'Not Extracted'}
</PatientData>
Based on the trajectory above, what will the patient's **next** Urea Nitrogen value be on 2012-10-31 00:00:00?
A. 10.0
B. 12.0
C. 11.0
D. 14.0
E. 11.0
Please share a single capital letter representing your selected answer: 
10.0 12.0 11.0 14.0 11.0