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: Gynaecology & Obstetrics
True about is / are : 
Select and explain. 
A. MS surgery better avoided in pregnancy, B. MR with PHT-definite indication for termination of pregnancy, C. Aoic stenosis in young age is due to Bicuspid valve, D. All
D: All
Answer: D: All 
Explanation: Ans. a, b and c i.e. MS surgery better avoided in pregnancy; MR with PHT- definite indication for termination of pregnancy; and Aoic stenosis in young age is due to Bicuspid valve