Pick your answer from: (A). sperm. (B). Proteins. (C). glycogen. (D). sugar. (E). hormones. (F). nutrients. (G). warmth. (H). food.

Fact 1: An egg requires warmth to survive. Fact 2: And humans do come from eggs, eggs without shells, they are called ovum. Given the two facts above, what do some ovum require to survive?
Answer:
(G).