Which of these activities would be considered a recommendation presented within the physical activity guidelines for children ages 6–17?


at least 1 day per week of bone-strengthening exercisesat least 1 day per week of bone-strengthening exercises , ,

as much aerobic activity as they possibly can do in 1 houras much aerobic activity as they possibly can do in 1 hour , ,

a limited amount of strength training dailya limited amount of strength training daily , ,

at least 60 minutes of activity at least 3 days per week