YOU SHOULD NOT WORRY ABOUT THE SHORTNESS OF BREATH BECAUSE____...

Câu 20. You should not worry about the shortness of breath because__________.

A. it shows that there is something wrong with your heart

B. it shows that you should stop and take a rest

C. it is a sign of your getting rid of your heart problem

D. it is a sign of exercise having the right effect

Choose the sentence (A, B, C or D) that is almost the same in meaning as the sentence given.