How is exercise beneficial to your cardiovascular health

A: it helps prevent you from getting lung infections
B: it improves the flow of oxygen to the cells in the body(my answer)
C: it keeps the neurons firing fast back and forth to the brain

3 answers

You are correct.

Yup. It is B. It's odd though. Why only 3 answers??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????

:)

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