In What Way Is Genetics Most Directly Related to a Child's

In what way is genetics most directly related to a child's risk of developing obesity?

A) Heredity determines whether a child is more or less likely to be sedentary, thus putting him/her at risk for putting on unhealthy weight.
B) Heredity determines whether you can or cannot be an athlete, and thus get enough exercise to burn off the calories that you consume.
C) Heredity may set a person's basal metabolic rate, which determines how quickly the body burns calories.
D) Heredity determines whether your pubertal growth spurt will increase your body's calorie needs enough to cause you to lose your "baby fat," and thus prevent you from developing adolescent or adulthood obesity.