In this task, you are given two facts, and a multiple-choice question. Based on the given facts, answer the question with index of the correct option (e.g, "A").

Fact1: Fertilization occurs when a sperm and an egg fuse., Fact2: After a sperm and egg unite, they form an embryo., Question: What happens with the formation of the embryo? (A) Plants growth (B) Plant reproduction (C) oxidation reaction (D) cancer (E) sex (F) cell death (G) It expands (H) fertilization
H