While in College, Ray Gained Several Pounds of Body Fat

Multiple Choice

While in college, Ray gained several pounds of body fat. He wants to use the recommendations of the 2015-2020 Dietary Guidelines for Americans to achieve a healthy body weight. According to these guidelines, he should

A) include 15 minutes of stretching, before and after his workouts.
B) reduce the time he spends being physically inactive.
C) increase his iron intake while decreasing his vitamin D intake.
D) eat grapefruit and other foods that increase the metabolic rate.