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: Some parasites kill their host, but most do not., Fact2: Parasites include lungworms and GI parasites., Question: What can kill their host? (A) cigarettes (B) bacteria (C) adding heat (D) heat or cold (E) burning (F) Dehydration (G) lungworms (H) Pollution
Example Output: G

Example Input: Fact1: fog is formed by water vapor condensing in the air, Fact2: Water vapor rises into the atmosphere., Question: what does the atmosphere do before turning into fog (A) adapt (B) rest (C) Rise (D) fall (E) cooled (F) snow (G) swirl (H) Lift
Example Output: C

Example Input: Fact1: a thermal insulator slows the transfer of heat, Fact2: Convection is the transfer of heat in fluids., Question: A thermal insulator does what to the convection in fluids? (A) motion (B) good (C) disposes of (D) slows (E) speeds (F) expand (G) reduce (H) maintains
Example Output:
D