Sexual Selection Can Result in an Increased Frequency of Alleles,which

Sexual selection can result in an increased frequency of alleles,which

A) may be harmful to the individual's survival but is always beneficial to its reproductive rate.
B) are always beneficial to the individual's survival but may be harmful to its reproductive rate.
C) are always beneficial to both the individual's survival and reproductive rates.
D) may be harmful to both the individual's survival and reproductive rates.