Use the Following Information to Answer the Next Few Questions

Multiple Choice

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.