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: Precipitation increases moisture., Fact2: Rain is liquid precipitation., Question: what increases moisture? (A) density (B) the sun (C) wind (D) rain (E) Honey (F) 17 (G) droughts (H) Type O
Example Output: D

Example Input: Fact1: Sperm had to swim from male to female reproductive organs for fertilization., Fact2: Gametes, the sperm and eggs, are produced by mitosis in the haploid gametophyte., Question: What swims from male to female reproductive organs for fertilization? (A) gametes (B) barnacles (C) fur seals (D) eggs (E) offspring (F) haploid (G) seeds (H) diploid
Example Output: A

Example Input: Fact1: lungs are used for breathing air by land animals, Fact2: African Elephants are the biggest land animals., Question: how do african elephants breathe (A) with ears (B) with skin (C) survive (D) four limbs (E) with lungs (F) Pituitary gland (G) with tusk (H) Heart rate
Example Output:
E