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: drought is when amount of precipitation decreases, Fact2: Most of the precipitation falls as snow., Question: What does lack of snow cause? (A) erosion (B) cold (C) drought (D) flooding (E) cracking (F) freezing (G) friction (H) tundra
A:
C