Hello there! Cardiovascular endurance has to do with you heart and lungs. Think about it. "Cardio" means heart and cardiovascular has to do with your heart and endurance has to do with how long you last. It has to do with the lungs and the muscles, but muscles isn't an option. The answer is B: heart and lungs.
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Explanation:
My sister do it too and it's more effective
they might stress the fact that would they ever be able to come home