Match the description of the murmur to the valvular lesion.

The defective valve does not close properly so blood flows back into the ventricle during early diastole. This results in an early diastolic murmur that follows the second heart sound and gradually decreases in intensity.

a. Aortic regurgitation
b. Aortic stenosis
c. Mitral regurgitation
d. Mitral stenosis