You are an assistant tasked with analyzing measurement histories to predict the patient's next laboratory or vital sign value.
<PatientData>
Demographics: {'race': 'Asian', 'gender': 'MALE', 'year of birth': 1968}
Prior Diagnosis 1: {'condition': 'Viral sinusitis (disorder)', 'condition status': 'Not Extracted', 'start date': '2012-07-04', 'end date': '2012-07-21'}
Prior measurements of different types 1: {'measurement': 'Body Height', 'measurement type': 'EHR encounter record', 'measurement date': '2011-09-06T00:00:00', 'unit': 'cm', 'value': 170.43}
Prior measurements of different types 2: {'measurement': 'Body Weight', 'measurement type': 'EHR encounter record', 'measurement date': '2011-09-06T00:00:00', 'unit': 'kg', 'value': 112.32}
Prior measurements of different types 3: {'measurement': 'Body Mass Index', 'measurement type': 'EHR encounter record', 'measurement date': '2011-09-06T00:00:00', 'unit': 'kg/m2', 'value': 38.67}
Prior measurements of different types 4: {'measurement': 'Systolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2011-09-06T00:00:00', 'unit': 'mmHg', 'value': 124.0}
Prior measurements of different types 5: {'measurement': 'Diastolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2011-09-06T00:00:00', 'unit': 'mmHg', 'value': 70.0}
Prior measurements of different types 6: {'measurement': 'Body Height', 'measurement type': 'EHR encounter record', 'measurement date': '2013-08-11T00:00:00', 'unit': 'cm', 'value': 170.43}
Prior measurements of different types 7: {'measurement': 'Body Weight', 'measurement type': 'EHR encounter record', 'measurement date': '2013-08-11T00:00:00', 'unit': 'kg', 'value': 115.33}
Prior measurements of different types 8: {'measurement': 'Body Mass Index', 'measurement type': 'EHR encounter record', 'measurement date': '2013-08-11T00:00:00', 'unit': 'kg/m2', 'value': 39.71}
Prior measurements of different types 9: {'measurement': 'Systolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2013-08-11T00:00:00', 'unit': 'mmHg', 'value': 116.0}
Prior measurements of different types 10: {'measurement': 'Diastolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2013-08-11T00:00:00', 'unit': 'mmHg', 'value': 85.0}
Prior measurements of different types 11: {'measurement': 'Total Cholesterol', 'measurement type': 'EHR encounter record', 'measurement date': '2013-08-11T00:00:00', 'unit': 'mg/dL', 'value': 162.0}
Prior measurements of different types 12: {'measurement': 'Triglycerides', 'measurement type': 'EHR encounter record', 'measurement date': '2013-08-11T00:00:00', 'unit': 'mg/dL', 'value': 126.0}
Prior measurements of different types 13: {'measurement': 'Low Density Lipoprotein Cholesterol', 'measurement type': 'EHR encounter record', 'measurement date': '2013-08-11T00:00:00', 'unit': 'mg/dL', 'value': 64.0}
Prior measurements of different types 14: {'measurement': 'High Density Lipoprotein Cholesterol', 'measurement type': 'EHR encounter record', 'measurement date': '2013-08-11T00:00:00', 'unit': 'mg/dL', 'value': 72.0}
Visit 1: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2011-09-06', 'end datetime': '2011-09-06'}
Visit 2: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2012-07-04', 'end datetime': '2012-07-04'}
Visit 3: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2013-08-11', 'end datetime': '2013-08-11'}
Procedure 1: {'procedure': 'Documentation of current medications', 'procedure type': 'EHR encounter record', 'procedure start datetime': '2013-08-11', 'procedure end datetime': 'Not Extracted', 'modifier': 'Not Extracted'}
</PatientData>
Based on the trajectory above, what will the patient's **next** Potassium value be on 2015-05-13 00:00:00?
A. 4.83
B. 4.03
C. 3.78
D. 5.15
E. 5.03
Please share a single capital letter representing your selected answer: 
4.83 4.03 3.78 5.15 5.03