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: Sperm are deposited in the vagina during sexual intercourse., Fact2: Male gametes are sperm., Question: What are deposited in the vagina during sexual intercourse? (A) several genes (B) prokaryotic cells (C) cilia (D) female gametes (E) testicles (F) male gametes (G) irritants (H) Vibrissae

A: F
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Q: Fact1: Skin color is another polygenic trait., Fact2: Most dental variations are polygenic, that is controlled by several genes., Question: Skin color is a trait controlled by what? (A) prokaryotic cells (B) one gene (C) enzymes (D) keratin (E) one's descendants (F) several genes (G) the environment (H) a single gene

A: F
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Q: Fact1: a greenhouse is used to protect plants by keeping them warm, Fact2: Greenhouse gases act as the glass in a greenhouse., Question: what keeps plants warm? (A) glass (B) trees (C) lipids (D) fats (E) fibers (F) keratin (G) energy (H) heat

A:
A
****