When zebrafish eggs are laid,they are surrounded by a tough chorion.Sperm are unable to get through this chorion and must find the tiny tunnel called a micropyle that provides a channel to the egg cell membrane.This channel is so tiny that only one sperm is able to fit through at a time.The micropyle most likely
A) aids in preventing polyspermy. B) prevents sperm from other species from fusing with the egg. C) evolved from a similar structure found in fruit fly eggs. D) ensures that the head and not the tail of the sperm fuses with the egg. E) is a mechanism to ensure that the zygote is diploid and not haploid.