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").

Ex Input:
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

Ex Output:
F

Ex Input:
Fact1: soil is formed by weathering, Fact2: Over time, the slow processes of weathering and erosion can turn large rocks into sand., Question: What is formed by erosion processing large rocks? (A) cracks (B) crust (C) Newton (D) roots (E) pan (F) soil (G) potash (H) biome

Ex Output:
F

Ex Input:
Fact1: gases from burning coal and oil dissolving in water in the atmosphere causes acid rain, Fact2: Acid rain kills trees ., Question: what does gases from burning coal and oil dissolving in water in the atmosphere do? (A) chemical changes (B) saves trees (C) forms diamonds (D) vaporization (E) heating liquids (F) kills trees (G) weathering (H) Pollution

Ex Output:
F