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: decomposition increases the amount of nutrients in the soil, Fact2: Plants grow in nutrient rich soil and absorb the nutrients., Question: What does decomposition do? (A) heat the body (B) it helps plants in growing (C) duplicate itself (D) rapid expansion (E) heat production (F) heat is produced (G) it keeps an organism warm (H) Cell division
A:
B