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: Pediatrics
Coarctation of aorta is most commonly associated with? 
Select and explain. 
A. ASD, B. PDA, C. Bicuspid aortic valve, D. VSD
C: Bicuspid aortic valve
Answer: C: Bicuspid aortic valve 
Explanation: c. Bicuspid aortic valve(Ref: Nelson's 20/e p 2205, Ghai 8/e p 429-431)Coarctation of aorta is associated with a bicuspid aortic valve in more than 70% of patients