Which of the Following Is True with Respect to Genetics

Which of the following is true with respect to genetics and obesity?

A) Adopted children are more likely to be similar in weight to their adopted parents as compared to their biological parents.
B) Although genes may influence fat distribution, they do not affect metabolism.
C) Studies reveal that identical twins are more likely than fraternal twins to be of similar weight.
D) Studies reveal that fraternal twins are more likely than identical twins to be of similar weight.