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
All are true about hypertrophic obstructive cardiomypathy except - 
Select and explain. 
A. Asymmertric hypertrophy of septum, B. Systolic motion of anterior leaflet, C. Left ventricle outflow obstruction, D. Beta blockers are not effective
D: Beta blockers are not effective
Answer: D: Beta blockers are not effective 
Explanation: None