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: Viruses cannot reproduce by themselves., Fact2: Viruses include the Tobacco Mosaic Virus., Question: The Tobacco Mosaic Virus cannot _ by itself. (A) migrate (B) reproduce (C) move (D) consume (E) It expands (F) animals (G) survive (H) respirate
A:
B