How is exercise beneficial to your cardiovascular health

Question

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

Answer 1

You are correct.

Answer 2

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

Answer 3

:)