Which of the following statements is correct regarding the warm-up and cool-down components of the...

Warm-up should last twice as long as cool-down.

Cool-down should approximate an intensity that is between 40 and 60% of VO2R

Warm-up need not involve cardiorespiratory activity if the conditioning phase of the exercise session involves resistance training.

Cool-down during the exercise session can be eliminated if at least 10 minutes of stretching is performed instead.