Question

select the correct answer.
what is cardiorespiratory endurance?
a. the ability of your heart and lungs to work during prolonged exercise
b. the ability of your heart to pump blood to your cells
c. the ability of your heart and lungs to fend off asthma
d. the ability of your heart to send de-oxygenated blood to the lungs

Explanation:

Cardiorespiratory endurance is related to the combined function of the heart and lungs during sustained physical activity. Option A directly addresses the heart and lungs working during prolonged exercise. Option B only focuses on the heart's function of pumping blood. Option C is about fending off asthma which is not the core of cardiorespiratory endurance. Option D is about a specific heart - lung blood - related function (sending de - oxygenated blood) which is not the overall endurance aspect.

Answer:

A. the ability of your heart and lungs to work during prolonged exercise