Detailed 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").
Q: Fact1: Some parasites kill their host, but most do not., Fact2: Any human is a potential host., Question: what do some parasites kill but most don't? (A) people (B) water (C) humans (D) animals (E) sound waves (F) goats (G) fungi (H) viruses
A:
C