Myron Is Concerned That His Son Is Not Getting Enough

Myron is concerned that his son is not getting enough exercise, particularly for a teenager. After some research, Myron finds that the U.S. federal government's exercise recommendations for adolescents are a:

A) minimum of 15 minutes of mild exercise per day.
B) maximum of 30 minutes of moderate to vigorous exercise per day.
C) minimum of 60 minutes of moderate to vigorous exercise per day.
D) maximum of 15 minutes of mild exercise per day.