Olympic athletes have lower resting heart rates because...

Atheir lungs tend to be naturally larger.
Bthey exercise regularly, which improves the efficiency of their heart.
Cthey tend to eat low-fat diets.
Dthey have a lot of muscle mass due to weightlifting.

PLEASE HELPP!!!!!!

hmmm...

A and D are wrong.

Both B and C are technically correct, but in the case of athletes...since exercise is proven to strengthen the heart and in turn decrease the heart rate...
B is the best answer.
Have a nice day!

Answer Link

Olympic athletes have lower resting heart rates because... Atheir lungs tend to be naturally larger.Bthey exercise regularly, which improves the efficiency of their heart. Cthey tend to eat low-fat diets.Dthey have a lot of muscle mass due to weightlifting. PLEASE HELPP!!!!!!

Verified Answer :

Related Questions

Olympic athletes have lower resting heart rates because...

Atheir lungs tend to be naturally larger.
Bthey exercise regularly, which improves the efficiency of their heart.
Cthey tend to eat low-fat diets.
Dthey have a lot of muscle mass due to weightlifting.

PLEASE HELPP!!!!!!