You are presented with the quiz "What happens with the formation of the embryo?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "fertilization occurs when a sperm and an egg fuse" and "after a sperm and egg unite, they form an embryo". So, what's the best answer to the question?

A). Plants growth B). Plant reproduction C). oxidation reaction D). cancer E). sex F). cell death G). It expands H). fertilization
The answer is:
H).