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: Viruses often infect bacteria., Fact2: Infected birds spread the bacteria in their droppings., Question: Viruses often can spread bacteria through what? (A) the skin (B) microscopes (C) contamination (D) covering (E) washing (F) alveoli (G) droppings (H) coating
Output:
G