22. What is Becker's sign?

A. Systolic contraction and diastolic dilation of the pupil.

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

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

D. Visible pulsation of the retinal arterioles.
 

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