Definition: 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").
Input: Fact1: wind is used for producing electricity, Fact2: Wind Turbines Wind turbines are windmills that generate electricity., Question: turbines are used to what? (A) direct energy (B) Metling snow (C) run a car (D) produce electricity (E) kinetic energy (F) chop trees (G) lift heavy objects (H) enormous damage to homes
Output:
D