Using Hamilton's Rule,__________

Multiple Choice

Using Hamilton's rule,__________.

A) a benefit given to a full sibling must be twice the costs to the actor for altruistic decision rules to evolve
B) a benefit given to a half sibling must be twice the costs to the actor for altruistic decision rules to evolve
C) a benefit given to a first cousin must be half the costs to the actor for altruistic decision rules to evolve
D) a benefit given to a first cousin must be four times the costs to the actor for altruistic decision rules to evolve