Q: 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: Viruses often infect bacteria., Fact2: Viruses Viruses are the simplest organisms known., Question: what often infects bacteria? (A) major threat to health (B) h2o (C) simplest known organisms (D) Food poisoning (E) mercury (F) humans (G) By wind and rain (H) microorganisms
A:
C