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: an animal requires nutrients to grow and heal, Fact2: Food is the ideal source of nutrients., Question: What does an animal require food for? (A) hydration (B) to grow and heal (C) for cold (D) aerobic capacity (E) organic molecules (F) food and shelter (G) to chill (H) for electricity
A:
B