Regarding fertilization, which of the following events happens first?

A) The fast block to polyspermy
B) The slow block to polyspermy
C) The cortical reaction
D) The acrosomal reaction

Acrosomal Reaction

The acrosomal reaction is a process in sperm that allows it to penetrate and fertilize an egg, involving the release of enzymes from the acrosome.

Fertilization

The process in which a sperm cell unites with an egg cell to form a zygote.

Polyspermy

The fertilization of an egg by more than one sperm, which can lead to developmental abnormalities.