Which of the Following Supports a Genetic Basis of Behavior

Which of the following supports a genetic basis of behavior?

A) Two brothers raised in the same household who like the same type of ice cream.
B) Identical twins that are raised in two separate families and grow up to smoke the same brand of cigarettes.
C) A sister and a brother who are raised in the same household and say things in the same way.
D) Two unrelated individuals who are raised in the same household and have the same taste in clothing.
E) Cousins who grow up in the same family prefer the same foods.