Question

how is exercise beneficial to your cardiovascular health A it helps you prevent lung infections B it improves the flow of oxygen to the cells in your body C it keeps the neurons firing fast back and forth to the brain

Answer 1

B) it improves the flow of oxygen to the cells in your body
Hope this helps you!

Answer 2

Exercise is beneficial to your cardiovascular health because it improves the flow of oxygen to the cells in your body.

Answer: Letter B