The Nurse Is Aware That the Gradual Weight Gain of a 25-Year-Old

The nurse is aware that the gradual weight gain of a 25-year-old man is most likely related to:

A) Consuming the same amount of calories as he did as an adolescent
B) Inadequate exercise
C) Consuming large amount of protein in the diet
D) Keeping late hours, resulting in inadequate rest
E) Eating junk food