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: disease-causing microbes have a negative impact on the body, Fact2: Microbes are also called bacteria or microorganisms., Question: What bacteria have a negative impact on the body? (A) helpful (B) parasites (C) disease-causing (D) Roundworms. (E) beneficial (F) smallpox (G) disease-curing (H) a pathogens
A:
C