Male Promiscuity Is More Common Than Female Promiscuity Because, Typically

Male promiscuity is more common than female promiscuity because, typically,

A) females have no reason to prefer one male over another.
B) females do not have to invest much in competition for mates.
C) males invest less in reproduction.
D) females are not interested in males unless the males will invest in offspring.
E) All of the above