Q: 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").
Fact1: using renewable resources to generate power reduces greenhouse gases, Fact2: Hydropower is a renewable resource., Question: What does hydropower help reduce? (A) deforestation (B) Greenhouse gases (C) enormous damage to homes (D) salinity (E) energy usage (F) flooding (G) massive damage (H) Temperature
A:
B