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: vinegar can cause harm to the eyes, Fact2: Vinegar is dilute acetic acid., Question: What can acetic acid do to the eyes? (A) treat cataracts (B) harm them (C) Relieve pain (D) Dehydration (E) kill them (F) hydrate them (G) protect them (H) cleanse them

Ex Output:
B


Ex Input:
Fact1: Freshwater biomes have water that contains little or no salt., Fact2: Biomes are global ecosystems., Question: what is freshwater habitats that contain little or no salt? (A) Animal survival (B) allow growth (C) weathering (D) atmosphere (E) loose soil (F) ecosystems (G) salt and water. (H) oceans

Ex Output:
F


Ex Input:
Fact1: if gas is heated then that gas will expand, Fact2: If a material is heated, it expands and the density decreases., Question: What happens to the density of a gas when heated? (A) stays constant (B) Temperature (C) energy (D) Energy. (E) decreases (F) nothing (G) Evaporation (H) increases

Ex Output:

E