This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S, Subject name: Medicine
[{'content': 'All are true about hyperophic cardiomyopathy, Except- \nSelect and explain. \nA. Digoxin is useful, B. Abdominal pain, C. Jaundice, D. Bleeding', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ref: Harrison&;s 19th E pg 1568. Digoxin increases the force of contraction. But in HOCM, as force of contraction, increases, the hyperophied septum and anterior mitral leaflet comes in close proximity and hence obstruction increases.', 'role': 'assistant'}]