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
Subaortic stenosis is not associated with? 
Select and explain. 
A. Ventricular septal defect, B. Aortic regargitation, C. Patent ductus arteriosus, D. Coarctation of aorta
B: Aortic regargitation
Answer: B: Aortic regargitation 
Explanation: None