as a person ages, his or her levels of cardiorespiratory fitness tend to _. a. improve b. decline c. stay…

as a person ages, his or her levels of cardiorespiratory fitness tend to _. a. improve b. decline c. stay the same d. none of the above please select the best answer from the choices provided.
Answer
Brief Explanations:
As the body ages, physiological changes occur. Muscles lose strength and elasticity, and the heart and lungs become less efficient. These factors lead to a decline in cardiorespiratory fitness.
Answer:
B. decline