You are an assistant tasked with analyzing medical histories to provide a second opinion on possible future diagnoses.

<PatientData>
Demographics: {'race': 'White', 'gender': 'MALE', 'year of birth': 1926}
Prior Diagnosis 1: {'condition': 'Chronic sinusitis (disorder)', 'condition status': 'Not Extracted', 'start date': '1937-12-07', 'end date': None}
Prior Diagnosis 2: {'condition': 'Prediabetes', 'condition status': 'Not Extracted', 'start date': '1979-10-18', 'end date': None}
</PatientData>
Based on the trajectory above, which diagnosis is the patient **most likely** to receive by 1981-08-07?
A. Appendicitis
B. Pulmonary emphysema (disorder)
C. Complication occuring during pregnancy
D. Fracture of clavicle
E. Primary fibromyalgia syndrome
Please share a single capital letter representing your selected answer: 
Appendicitis Pulmonary emphysema (disorder) Complication occuring during pregnancy Fracture of clavicle Primary fibromyalgia syndrome