This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Medicine
All of the following hea sounds occur sholy after S2 except 
Select and explain. 
A. Opening snap, B. Pericardial knock, C. Ejection click, D. Tumor plop
C: Ejection click
Answer: C: Ejection click 
Explanation: An ejection sound is a high-pitched early systolic sound that corresponds in timing to the upstroke of the carotid pulse. The other three are heard during diastole. ref - harrson's internal medicine 20e pg1671-1673,1811,1815