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: Pharmacology
Digoxin is contra indicated in: 
Select and explain. 
A. Supraventricular tachycardia, B. Atrial fibrillation, C. Congestive heart failure, D. Hypertrophic obstructive cardiomyopathy
D: Hypertrophic obstructive cardiomyopathy
Answer: D: Hypertrophic obstructive cardiomyopathy 
Explanation: None