Why does reinforcement involve a strengthening of prezygotic, rather than postzygotic, isolation? group of answer choices
a) alleles that prevent interbreeding are more likely to be inherited by viable, nonhybrid offspring than alleles that permit random mating.
b) postzygotic isolation has only a minimal evolutionary impact.
c) the rewards of postzygotic isolation are always much smaller than those of prezygotic isolation.
d) reinforcement occurs only rarely.
e) assortative mating is uncommon.