Which is the most effective piece of evidence to support the claim that adolescents who exercise daily are healthier than those who are inactive?

The strongest evidence directly compares health-related outcomes associated with daily exercise: stronger muscles, better respiratory fitness, and lower body fat. These specific benefits support the claim that active adolescents are healthier than inactive adolescents. The other choices describe exercise types, possible effects of inactivity, or activities adolescents enjoy, but do not provide as direct evidence for the claim.

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