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: seeing requires light, Fact2: Humans see with our eyes., Question: What requires light? (A) bats (B) rocks (C) orange (D) homes (E) eyes (F) lynx (G) cats (H) deep-sea dwellers
Output:
E