Which of the Following Is Correct Concerning the Key Points

Which of the following is correct concerning the key points of an aerobic exercise program?

A) An exercise program, which has a frequency of two to three times per week, provided duration and intensity
Are adequate to achieve cardiovascular health, is also recommended if weight control is the primary goal.
B) Intensity and duration are interrelated, but for burning the most total Calories for weight control purposes, high intensity exercise programs are most recommended.
C) Practicality, enjoyment, and versatility are all important factors in an exercise program.
D) All of the answers are correct.