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").
Q: Fact1: intense heat has a negative impact on an organism, Fact2: Bacteria are killed by intense heat for a certain time., Question: What hurts bacteria? (A) Hot temperatures (B) Abnormal cell growth (C) Cool air (D) Warm water (E) Room temperatures (F) prolactin release (G) some viruses (H) Pollution
A:
A