What have
echocardiogram
studies revealed
about the different
effects of exercise
on the heart of
aerobic athletes
and anaerobic
athletes?

It is shown via echocardiogram that aerobic athletes have enlarged left ventricle with the thickening of its wall. In anaerobic athletes, it is found the increase of the left ventricle wall but the its size remains the same.

It is shown via echocardiogram that aerobic athletes have enlarged left ventricle with the thickening of its wall. In anaerobic athletes, it is found the increase of the left ventricle wall but the its size remains the same.

Explanation:

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blood alcohol concentration is affected by factors such as body size and gender.

( i saw this one before)

i say that the answer is 'd'