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: smoking causes direct damage to the lungs, Fact2: Smoking causes lung cancer., Question: What causes cancer? (A) wind (B) Roundworms (C) abstinence (D) steroids (E) smoking (F) lungs (G) influenza (H) viruses
Output:
E