Which of the following statements is correct regarding the warm-up and cool-down components of the exercise training session?
a. warm-up should last twice as long as cool-down
b. cool-down should approximate an intensity that is between 40 and 60 percent of VO2R
c. warm-up need not involve cardiorespiratory activity if the conditioning phase of the exercise session involves resistance training
d. cool-down during the exercise session can be eliminated if at least 10 minutes of stretching is performed instead
Answer: A