Consider the following features important for the process of fertilization:

A. Sperm undergo acrosome reaction to penetrate the egg's zona pellucida.

B. The fusion of sperm and egg membranes triggers the completion of the egg's second meiotic division.

C. Cortical granules in the egg modify the zona pellucida post-fertilization to prevent polyspermy.

D. Capacitation is a biochemical change that sperm undergo in the female reproductive tract to gain the ability to fertilize an egg.

E. The cortical reaction is initiated by the influx of calcium ions post fusion of sperm and egg membranes.

Which option below has all correct features regarding fertilization?