This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
26 year old man died while playing. His autopsy of the heart revealed myocyte hypertrophy. Diagnosis is - 
Select and explain. 
A. HOCM, B. DCM, C. Arrythmogenic cardiac problem, D. Restrictive cardiomyopathy
A: HOCM
Answer: A: HOCM 
Explanation: None