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': 1955}
Prior Diagnosis 1: {'condition': 'Acute viral pharyngitis (disorder)', 'condition status': 'Not Extracted', 'start date': '1967-05-10', 'end date': '1967-05-21'}
Prior Diagnosis 2: {'condition': 'Acute viral pharyngitis (disorder)', 'condition status': 'Not Extracted', 'start date': '1975-01-21', 'end date': '1975-02-03'}
Prior Diagnosis 3: {'condition': 'Acute viral pharyngitis (disorder)', 'condition status': 'Not Extracted', 'start date': '1989-03-20', 'end date': '1989-04-01'}
Prior Diagnosis 4: {'condition': 'Acute viral pharyngitis (disorder)', 'condition status': 'Not Extracted', 'start date': '1992-08-01', 'end date': '1992-08-13'}
Prior Diagnosis 5: {'condition': 'Acute viral pharyngitis (disorder)', 'condition status': 'Not Extracted', 'start date': '2004-04-13', 'end date': '2004-04-25'}
Prior measurements of different types 1: {'measurement': 'Body Height', 'measurement type': 'EHR encounter record', 'measurement date': '2010-08-10T00:00:00', 'unit': 'cm', 'value': 165.71}
Prior measurements of different types 2: {'measurement': 'Body Weight', 'measurement type': 'EHR encounter record', 'measurement date': '2010-08-10T00:00:00', 'unit': 'kg', 'value': 110.42}
Prior measurements of different types 3: {'measurement': 'Body Mass Index', 'measurement type': 'EHR encounter record', 'measurement date': '2010-08-10T00:00:00', 'unit': 'kg/m2', 'value': 40.21}
Prior measurements of different types 4: {'measurement': 'Systolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2010-08-10T00:00:00', 'unit': 'mmHg', 'value': 105.0}
Prior measurements of different types 5: {'measurement': 'Diastolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2010-08-10T00:00:00', 'unit': 'mmHg', 'value': 80.0}
Prior measurements of different types 6: {'measurement': 'Total Cholesterol', 'measurement type': 'EHR encounter record', 'measurement date': '2010-08-10T00:00:00', 'unit': 'mg/dL', 'value': 196.0}
Prior measurements of different types 7: {'measurement': 'Triglycerides', 'measurement type': 'EHR encounter record', 'measurement date': '2010-08-10T00:00:00', 'unit': 'mg/dL', 'value': 110.0}
Prior measurements of different types 8: {'measurement': 'Low Density Lipoprotein Cholesterol', 'measurement type': 'EHR encounter record', 'measurement date': '2010-08-10T00:00:00', 'unit': 'mg/dL', 'value': 99.0}
Prior measurements of different types 9: {'measurement': 'High Density Lipoprotein Cholesterol', 'measurement type': 'EHR encounter record', 'measurement date': '2010-08-10T00:00:00', 'unit': 'mg/dL', 'value': 75.0}
Prior measurements of different types 10: {'measurement': 'Body Height', 'measurement type': 'EHR encounter record', 'measurement date': '2011-08-04T00:00:00', 'unit': 'cm', 'value': 165.71}
Prior measurements of different types 11: {'measurement': 'Body Weight', 'measurement type': 'EHR encounter record', 'measurement date': '2011-08-04T00:00:00', 'unit': 'kg', 'value': 110.42}
Prior measurements of different types 12: {'measurement': 'Body Mass Index', 'measurement type': 'EHR encounter record', 'measurement date': '2011-08-04T00:00:00', 'unit': 'kg/m2', 'value': 40.21}
Prior measurements of different types 13: {'measurement': 'Systolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2011-08-04T00:00:00', 'unit': 'mmHg', 'value': 105.0}
Prior measurements of different types 14: {'measurement': 'Diastolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2011-08-04T00:00:00', 'unit': 'mmHg', 'value': 86.0}
Visit 1: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2010-08-10', 'end datetime': '2010-08-10'}
Visit 2: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2011-08-04', 'end datetime': '2011-08-04'}
Medication 1: {'Drug name': 'Penicillin V Potassium 500 MG', 'Start datetime': '1978-06-08', 'End datetime': '1978-06-08', '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': '2010-08-10', 'procedure end datetime': 'Not Extracted', 'modifier': 'Not Extracted'}
Procedure 2: {'procedure': 'Documentation of current medications', 'procedure type': 'EHR encounter record', 'procedure start datetime': '2011-08-04', 'procedure end datetime': 'Not Extracted', 'modifier': 'Not Extracted'}
</PatientData>
Based on the trajectory above, what will the patient's **next** Hemoglobin.gastrointestinal [Presence] in Stool by Immunologic method value be on 2011-12-06 00:00:00?
A. 2.0
B. 11.0
C. 7.0
D. 21.0
E. 17.0
Please share a single capital letter representing your selected answer: 
2.0 11.0 7.0 21.0 17.0