Emma is a 5-year-old and weighs 90 pounds.Family studies tell us that her obesity is a result of

A) heredity.
B) environment.
C) behavior.
D) a combination of all three factors.

Emma's obesity is likely a result of a combination of heredity, environment, and behavior. Genetics can predispose individuals to obesity, environmental factors such as access to healthy foods and physical activity opportunities can influence weight, and personal behaviors like diet and exercise habits also play a crucial role.