Option B is the correct answer.
Increased cardiorespiratory fitness
means the body makes more efficient use of oxygen requiring less to
function as well or better than when you are less fit as judged on this
index.
Explanation:
she will also follow her friends and do whatever they do. teenage thinks that they are the best and they can do whatever to be best infront of others
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The answer is b, it can guide treatment of cardiac disease