Respuesta :
I would say D because it would be hereditary because her mother has it, and who knows if her mother’s mother has it. It just makes more sense to me than the others, because all of the other you can control.
D. would be the answer. Heredity, age, and gender are all things that Amanda can not change about herself, but things like environment, sleep, diet, etc... are all things she has the power to change.