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").
Q: Fact1: Gametes then unite in fertilization and form a diploid zygote., Fact2: Haploid gametes unite to form diploid zygote., Question: What do gametes turn into? (A) diploid zygotes (B) Chemical energy (C) baby (D) allow growth (E) Plants growth (F) haploid zygote (G) parasites (H) placenta
A:
A