Answer:
B. 5 to 15 minutes
Step-by-step explanation:
If you train too much without proper rest, your body will not have time to recover and you will trigger a series of bad "reactions" in your metabolism (such as muscle loss and repetitive strain injuries). But if you train too little and take a rest, your body will not view exercise as training, only as a casual and strange stimulus, and it will not evolve. For this reason, we can say that training and rest should go hand in hand. After an intense workout, it is best to rest for 5 to 15 minutes, depending on the type of training, the intensity and your conditioning.