The right answer for the question that is being asked and shown above is that: "Anaerobic exercise is mostly intended to improve cardiorespiratory endurance." The statement about anaerobic exeroses that is true is that Anaerobic exercise is mostly intended to improve cardiorespiratory endurance.
Explanation: This situation describes the use of more than a drug which eventually results into combination of value and performance. This synergistic effect can be beneficial or harmful.