Question

federal guidelines recommend that children perform a vigorous workout at least three days a week. which activity would meet this goal?
sprinting fast around the school track
walking casually with friends to school
stretching as part of an exercise warm - up routine

Explanation:

A vigorous workout involves intense physical activity that increases heart rate and breathing significantly. Sprinting fast around the school track is a high - intensity activity that qualifies as vigorous. Walking casually is low - intensity, loitering in the pool (assuming it's just standing around) isn't vigorous, and stretching is a warm - up or flexibility exercise, not a vigorous workout.

Answer:

A. sprinting fast around the school track