When a Mother Gives a Better Piece of Fruit to Her

Multiple Choice

When a mother gives a better piece of fruit to her child instead of the neighbor child, sociobiology would say it is because

A) she wants to propagate her genes into the future.
B) this is what culture says is acceptable for her to do.
C) she doesn't want her child to be mad at her since she has to live with him.
D) she dislikes the neighbor child.