When boys reach puberty, they usually develop greater muscle mass, whereas when girls reach puberty they typically have an increase in body fat percentage. These findings are likely related to which of the following?

A) Girls are more likely to develop eating disorders than boys.
B) Eating disorders are more likely to occur after reaching puberty.
C) Eating disorders occur most frequently in boys who were skinny during childhood.
D) Both a and b.

The increase in muscle mass in boys and body fat in girls during puberty is related to natural physiological changes rather than the development of eating disorders. However, societal pressures and body image issues that can arise during this time may contribute to a higher risk of eating disorders in both genders, with girls traditionally being more affected. Choices A and B are connected in that the societal and psychological pressures faced during and after puberty can contribute to the higher incidence of eating disorders among girls, but the physiological changes themselves are natural aspects of development.