9. When will the murmur of aortic valve regurgitation be located at the right upper sternal border instead of the left lower sternal border?

A. When the aortic valve regurgitation is acute in onset

B. When the aortic valve regurgitation results from dilation of the aortic annulus

C. When the aortic valve regurgitation is severe

D. The murmur of aortic valve regurgitation is located at Erb’s point and never at the right upper sternal border
 

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