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").

Example Input: Fact1: if gas is heated then that gas will expand, Fact2: If more space between 2 galaxies more space to expand so it moves away faster., Question: When gas is heated, it takes up more: (A) solutes (B) plasma (C) fluidity (D) energy (E) space (F) viscosity (G) matter (H) Energy.
Example Output: E

Example Input: Fact1: All chemical reactions require activation energy to get started., Fact2: Fire is a chemical reaction., Question: What does fire require to get started? (A) an engine (B) activation energy (C) water (D) energy usage (E) direct energy (F) dogs (G) activated almonds (H) adding heat
Example Output: B

Example Input: Fact1: freezing causes a solid to form, Fact2: Water freezes at 32 degrees., Question: What happens when water's temperature drops to 32 degrees or below? (A) Its speed increases (B) vaporization (C) It turns into oil (D) They may not survive. (E) It becomes solid (F) It becomes ice cream (G) Plant growth is reduced (H) permineralization
Example Output:
E