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: pesticides can cause pollution, Fact2: Environmental pollution leads to more ill-health., Question: What can cause illness? (A) influenza (B) toxins (C) pesticides (D) viruses (E) fresh air (F) hypothyroidism (G) improper pants (H) bad language
Output:
C