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': 'MALE', 'year of birth': 1939}
Prior Diagnosis 1: {'condition': 'Chronic sinusitis (disorder)', 'condition status': 'Not Extracted', 'start date': '1958-02-18', 'end date': None}
Prior Diagnosis 2: {'condition': 'Prediabetes', 'condition status': 'Not Extracted', 'start date': '1965-05-15', 'end date': None}
Prior Diagnosis 3: {'condition': 'Polyp of colon', 'condition status': 'Not Extracted', 'start date': '2009-05-26', 'end date': '2010-06-05'}
Last Calcium measurement on 2010-07-20 00:00:00: {'measurement': 'Calcium', 'measurement type': 'EHR encounter record', 'measurement date': '2010-07-20T00:00:00', 'unit': 'mg/dL', 'value': 10.18}
Prior measurements of the same type 1: {'measurement': 'Calcium', 'measurement type': 'EHR encounter record', 'measurement date': '2010-07-20T00:00:00', 'unit': 'mg/dL', 'value': 10.18}
Prior measurements of different types 1: {'measurement': 'Hemoglobin A1c/Hemoglobin.total in Blood', 'measurement type': 'EHR encounter record', 'measurement date': '2010-07-20T00:00:00', 'unit': '%', 'value': 6.0}
Prior measurements of different types 2: {'measurement': 'Body Height', 'measurement type': 'EHR encounter record', 'measurement date': '2010-07-20T00:00:00', 'unit': 'cm', 'value': 169.21}
Prior measurements of different types 3: {'measurement': 'Body Weight', 'measurement type': 'EHR encounter record', 'measurement date': '2010-07-20T00:00:00', 'unit': 'kg', 'value': 97.65}
Prior measurements of different types 4: {'measurement': 'Body Mass Index', 'measurement type': 'EHR encounter record', 'measurement date': '2010-07-20T00:00:00', 'unit': 'kg/m2', 'value': 34.11}
Prior measurements of different types 5: {'measurement': 'Systolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2010-07-20T00:00:00', 'unit': 'mmHg', 'value': 136.0}
Prior measurements of different types 6: {'measurement': 'Diastolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2010-07-20T00:00:00', 'unit': 'mmHg', 'value': 85.0}
Prior measurements of different types 7: {'measurement': 'Hemoglobin A1c/Hemoglobin.total in Blood', 'measurement type': 'EHR encounter record', 'measurement date': '2010-07-20T00:00:00', 'unit': '%', 'value': 6.0}
Prior measurements of different types 8: {'measurement': 'Glucose', 'measurement type': 'EHR encounter record', 'measurement date': '2010-07-20T00:00:00', 'unit': 'mg/dL', 'value': 89.0}
Prior measurements of different types 9: {'measurement': 'Urea Nitrogen', 'measurement type': 'EHR encounter record', 'measurement date': '2010-07-20T00:00:00', 'unit': 'mg/dL', 'value': 20.0}
Prior measurements of different types 10: {'measurement': 'Creatinine', 'measurement type': 'EHR encounter record', 'measurement date': '2010-07-20T00:00:00', 'unit': 'mg/dL', 'value': 1.0}
Prior measurements of different types 11: {'measurement': 'Sodium', 'measurement type': 'EHR encounter record', 'measurement date': '2010-07-20T00:00:00', 'unit': 'mmol/L', 'value': 144.0}
Prior measurements of different types 12: {'measurement': 'Potassium', 'measurement type': 'EHR encounter record', 'measurement date': '2010-07-20T00:00:00', 'unit': 'mmol/L', 'value': 4.74}
Prior measurements of different types 13: {'measurement': 'Chloride', 'measurement type': 'EHR encounter record', 'measurement date': '2010-07-20T00:00:00', 'unit': 'mmol/L', 'value': 102.0}
Prior measurements of different types 14: {'measurement': 'Carbon Dioxide', 'measurement type': 'EHR encounter record', 'measurement date': '2010-07-20T00:00:00', 'unit': 'mmol/L', 'value': 24.0}
Visit 1: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2010-06-05', 'end datetime': '2010-06-05'}
Visit 2: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2010-07-20', 'end datetime': '2010-07-20'}
Medication 1: {'Drug name': 'Penicillin V Potassium 500 MG', 'Start datetime': '1996-05-29', 'End datetime': '1996-05-29', 'Route': None, 'Quantity': 'Not Extracted', 'Stop Reason': 'Not Extracted', 'Dose Unit': 'Not Extracted'}
Procedure 1: {'procedure': 'Colonoscopy', 'procedure type': 'EHR encounter record', 'procedure start datetime': '2010-06-05', 'procedure end datetime': 'Not Extracted', 'modifier': 'Not Extracted'}
</PatientData>
Based on the trajectory above, what will the patient's **next** Calcium value be on 2011-09-28 00:00:00?
A. 9.06
B. 8.54
C. 10.09
D. 8.93
E. 9.98
Please share a single capital letter representing your selected answer: 
9.06 8.54 10.09 8.93 9.98