There Are Several Species of Mammals Where the Males Often

Multiple Choice

There are several species of mammals where the males often mount other males,and anal intercourse has been observed in some male primates.The most likely explanation of this behavior is that

A) there is homosexual behavior among many species of mammals.
B) basic mammalian heritage is composed exclusively of homosexual tendencies alone.
C) there is a scarcity of females in all species.
D) basic mammalian heritage is composed exclusively of heterosexual tendencies alone.