Answer:
The answer would be - Sprinting fast around the school track.
Explanation:
According to the federal guidelines recommendations about workout and exercise programs for the children that say that children should perform the vigorous workout at least 3 times in 7 days.
Sprinting is one of the exercises that can be included as vigorous exercise. Sprinting is basically running for a short distance in a certain time limit.
Thus, the correct answer would be - sprinting fast around the school track.