Instructions: 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: Some viruses can cause cancer., Fact2: Eventually the cancer kills., Question: what can some viruses do? (A) cure cancer (B) death (C) kill (D) create hydrogen (E) grow (F) damage (G) kill electrons (H) harm
Output:
C