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: rain causes erosion, Fact2: Rain is liquid precipitation., Question: liquid precipitation causes what? (A) erosion (B) streams. (C) drought (D) rainfall (E) bodies (F) flooding (G) Pollution (H) sand
A:
A