A 22yrs athlete died of sudden cardiac arrest after athletic activity.Postmortem finding revealed interventricular septal hypertrophy.The most possible diagnosis is

• A. Hypertrophic Obstructive Cardiomyopathy (HOCM)
• B. Dilated Cardiomyopathy (DCM)
• C. Ventricular Septal Defect (VSD)
• D. Aortic Stenosis (AS)