Answer the following question given this paragraph: 

To ensure that no more than one sperm fertilizes the egg, once the acrosomal reactions take place at one location of the egg membrane, the egg releases proteins in other locations to prevent other sperm from fusing with the egg. If this mechanism fails, multiple sperm can fuse with the egg, resulting in polyspermy. The resulting embryo is not genetically viable and dies within a few days.


Q: What is the term for if multiple sperm fuse with an egg?

 Choices:

- fraternization

- in vitro fertilization

- pollenation

- polyspermy

A:
polyspermy
