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").
Input: Fact1: a plants require water for survival, Fact2: All plants are of bush type., Question: what requires water for survival? (A) sound waves (B) oxygen (C) bushes (D) cows (E) bears (F) pigeons (G) microwaves (H) cats
Output:
C