Sylvia and Frank are 10-year-old twins. On their last birthday, their parents ga

The Answer for this one would be B. Gender lessons. They are opposite sex twins, and the parents are trying to teach them a distinguishing factor about the way they are supposed to think with the gifts they give them. Art or construction don't really work because sylvia isn't designing the doll house or building it and Frank isn't doing anything artistic by following instructions. Science doesn't work because the scientific method doesn't apply to this scenario in any way. There isn't really anything scientific about a doll house and miniature house kit.