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").

Example Input: Fact1: thick fur can be used for keeping warm, Fact2: When the body is warm, heat production is minimized., Question: thick fur can be used for minimizing what? (A) heat energy (B) heat production (C) scattered light (D) energy usage (E) freezer burn (F) movie production (G) fur production (H) Temperature
Example Output: B

Example Input: Fact1: extreme heat and pressure change rock into metamorphic rock, Fact2: Marble is a form of metamorphic rock., Question: What is formed from extreme heat and pressure? (A) glass (B) marble (C) crust (D) soils (E) coal (F) sugar (G) calcite (H) arteries
Example Output: B

Example Input: Fact1: a windmill converts wind energy into electricity primarily by using mechanical energy, Fact2: Wind speed is important for wind energy., Question: What converts more wind into electricity? (A) bicycle (B) adding heat (C) stagnant wind (D) slow wind (E) engines (F) wind speed (G) satellites (H) no wind
Example Output:
F