You are an assistant tasked with analyzing measurement histories to predict the patient's next laboratory or vital sign value.
<PatientData>
Demographics: {'race': None, 'gender': 'MALE', 'year of birth': 1984}
Prior Diagnosis 1: {'condition': 'Chronic sinusitis (disorder)', 'condition status': 'Not Extracted', 'start date': '1988-11-25', 'end date': None}
Prior Diagnosis 2: {'condition': 'Otitis media', 'condition status': 'Not Extracted', 'start date': '2015-02-17', 'end date': '2016-04-15'}
Last Body Mass Index measurement on 2013-04-28 00:00:00: {'measurement': 'Body Mass Index', 'measurement type': 'EHR encounter record', 'measurement date': '2013-04-28T00:00:00', 'unit': 'kg/m2', 'value': 28.99}
Prior measurements of the same type 1: {'measurement': 'Body Mass Index', 'measurement type': 'EHR encounter record', 'measurement date': '2010-11-18T00:00:00', 'unit': 'kg/m2', 'value': 27.86}
Prior measurements of the same type 2: {'measurement': 'Body Mass Index', 'measurement type': 'EHR encounter record', 'measurement date': '2013-04-28T00:00:00', 'unit': 'kg/m2', 'value': 28.99}
Prior measurements of different types 1: {'measurement': 'Body Height', 'measurement type': 'EHR encounter record', 'measurement date': '2010-11-18T00:00:00', 'unit': 'cm', 'value': 169.31}
Prior measurements of different types 2: {'measurement': 'Body Weight', 'measurement type': 'EHR encounter record', 'measurement date': '2010-11-18T00:00:00', 'unit': 'kg', 'value': 79.87}
Prior measurements of different types 3: {'measurement': 'Systolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2010-11-18T00:00:00', 'unit': 'mmHg', 'value': 122.0}
Prior measurements of different types 4: {'measurement': 'Diastolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2010-11-18T00:00:00', 'unit': 'mmHg', 'value': 74.0}
Prior measurements of different types 5: {'measurement': 'Body Height', 'measurement type': 'EHR encounter record', 'measurement date': '2013-04-28T00:00:00', 'unit': 'cm', 'value': 169.31}
Prior measurements of different types 6: {'measurement': 'Body Weight', 'measurement type': 'EHR encounter record', 'measurement date': '2013-04-28T00:00:00', 'unit': 'kg', 'value': 83.1}
Prior measurements of different types 7: {'measurement': 'Systolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2013-04-28T00:00:00', 'unit': 'mmHg', 'value': 113.0}
Prior measurements of different types 8: {'measurement': 'Diastolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2013-04-28T00:00:00', 'unit': 'mmHg', 'value': 80.0}
Visit 1: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2010-11-18', 'end datetime': '2010-11-18'}
Visit 2: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2013-04-28', 'end datetime': '2013-04-28'}
Visit 3: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2015-02-17', 'end datetime': '2015-02-17'}
Medication 1: {'Drug name': 'Amoxicillin 500 MG Oral Tablet', 'Start datetime': '2015-02-17', 'End datetime': '2015-03-03', 'Route': None, 'Quantity': 'Not Extracted', 'Stop Reason': 'Not Extracted', 'Dose Unit': 'Not Extracted'}
Medication 2: {'Drug name': 'Ibuprofen 200 MG Oral Tablet', 'Start datetime': '2015-02-17', 'End datetime': '2015-03-03', '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': '2010-11-18', 'procedure end datetime': 'Not Extracted', 'modifier': 'Not Extracted'}
</PatientData>
Based on the trajectory above, what will the patient's **next** Body Mass Index value be on 2016-04-15 00:00:00?
A. 21.5
B. 19.06
C. 27.65
D. 30.27
E. 37.6
Please share a single capital letter representing your selected answer: 
21.5 19.06 27.65 30.27 37.6