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: plant requires seed dispersal for reproduction, Fact2: Reproductive investment was measured as seed mass, samara size, and dispersal ability., Question: What requires investment, seed mass, size and dispersal? (A) plants (B) Species (C) animals (D) coral (E) Oak (F) gene flow (G) Frogs (H) mussels
Example Output: A

Example Input: Fact1: Some viruses can cause cancer., Fact2: Cancer is an example of a mutation in cells., Question: What can mutate cells? (A) Allergies (B) water (C) fruits (D) flow of electrons (E) vegetables (F) harmful substances (G) rays or beams (H) some viruses
Example Output: H

Example Input: Fact1: a spider web is used to capture food by spiders, Fact2: Spiders are the largest group of arachnids., Question: What captures food with a web? (A) clown fish (B) lizards (C) cnidarians (D) each species (E) monkeys (F) sponges (G) arachnids (H) dandelions
Example Output:
G