Use the following information to answer the next few questions.
Imagine that your house has caught fire.It is only yourself and your full-sibling brother in the house since your parents are gone on vacation.After escaping the house,you cannot find your brother and decide he must still be inside.There is a 25% chance that you will not survive the fire,and you each will produce two offspring each should you survive.
-Hamilton's Rule predicts that
A)C = 1.
B)rB = 2.
C)the cost of saving your brother outweighs the benefit.
D)rB = 0.5.
E)the benefits outweigh the cost and you attempt to save your brother.