24. What is Mayne's sign?

A. A decrease in diastolic blood pressure of 15 mmHg when the arm is held above the head.

B. Systolic contraction and diastolic dilation of the pupil.

C. Exaggeration of the murmur of aortic regurgitation with leaning forward at end expiration.

D. The shortening of the early diastolic murmur as the aortic regurgitation becomes more severe.
 

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