Definition: 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").
Input: Fact1: Corals form large colonies in shallow tropical water., Fact2: Coral communities are found only in warm waters., Question: Shallow tropical water is what? (A) porous (B) low in biodiversity (C) cold (D) uninhabited (E) pretty (F) rain (G) warm (H) calm
Output:
G