You will be given a definition of a task first, then some input of the task.
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").

Fact1: pasteurization reduces the amount of bacteria in milk, Fact2: Pasteurization destroys the bacteria in milk that cause tuberculosis., Question: What reduces the cause of tuberculosis in milk? (A) Pasteurization (B) melanin amount (C) safe operation (D) protection (E) a small molecule (F) ribonucleic acid (G) enzymes (H) Refrigeration
Output:
A