I believe it is C but if i get it wrong sorry
Answer:
The heart's main job is to pump oxygen-rich blood to the body after it pumps ... Together, the arteries and veins are referred to as the vascular system. ... It plays an important role in helping the body meet the demands of activity, ... of diseases or conditions dealing with the heart and vascular systems.
Explanation:
The answer is all of the above
<span>You should leave at least a day between anaerobic exercises to let muscles rest and heal.
is the right answer or the first option.
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