The correct option is A Acrosome
The acrosome is an organelle that develops over the anterior half of the head in the sperm cells of many animals. It is a cap-like structure derived from the Golgi apparatus.
Centrosome is an organelle that is the main place, where cell microtubules get organized.
Lysosome is membrane bound organelle capable of breaking down all types of biological products.
Ribosome serves as the site for protein synthesis.