Match the Term with the Correct Definition

Match the term with the correct definition.
-coefficient of relatedness

A) the probability any two individuals share a copy of genes by descent.
B) the total number of copies of genes passed on via reproduction and via relatives.
C) selection that lowers one's fitness but enhances that of a relative.
D) the development of sterile castes in social insects.
E) behavior that appears to benefit others at a cost to oneself.