Definition: 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: cell division often causes growth, Fact2: Mitosis is cell division., Question: What causes the growth of a living organism? (A) Accumulation of wealth (B) Cell mitosis (C) Starvation (D) Organic compounds (E) gene flow (F) organic molecules (G) Infections (H) genetic material
Output:
B