Answer the following question given this paragraph: 

of human sperm as well as a diagram of the parts of the sperm. An acrosome is found at the top of the head of the sperm. This structure contains lysosomal enzymes that can digest the protective coverings that surround the egg to help the sperm penetrate and fertilize the egg. An ejaculate will contain from two to five milliliters of fluid with from 50–120 million sperm per milliliter.


Q: What structure is found at the top of the head of the sperm that helps it penetrate and fertilize the egg?

 Choices:

- centriole

- terminal disc

- axial filament

- acrosome

A:
acrosome
