Detailed 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").
Q: Fact1: bacteria in soil convert atmospheric nitrogen into a form usable by plants, Fact2: Like nitrogen, phosphorus is a plant nutrient., Question: What in the soil converts a type of nutrient into a form usable by plants? (A) sugar (B) Beetles (C) Plants (D) Glucose (E) Bacteria (F) a solute (G) Roots (H) Enzymes
A:
E