One Way to Reduce the Incidence of Obesity in Adolescence

Multiple Choice

One way to reduce the incidence of obesity in adolescence is to have teens engage in "regular activity." Which of these defines such activity?

A) Exercise must last for at least 60 minutes, two times per week.
B) Exercise must occur at least five times a week.
C) Exercise must burn at least 250 calories.
D) Exercise must last for 30 minutes, three times per week.