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: Consider Input: Fact1: coal is used for generating heat by burning, Fact2: Coal and lignite are the lithified remains of plants., Question: What are the lithified remains of plants used for? (A) heat production (B) generating heat by burning (C) harvesting crops (D) damming rivers (E) food and shelter (F) heat is produced (G) A transportation fuel (H) planting seeds

Output: B

Input: Consider Input: Fact1: oil is formed by layers of sediment pushing down on decomposing algae, Fact2: When the algae dies it is decomposed by bacteria., Question: Oil is formed by layers of sediment pushing down on what? (A) bacteria (B) nutrients (C) amoebae (D) tunicates (E) oysters (F) coral reefs (G) mussels (H) Bodily water

Output: A

Input: Consider Input: Fact1: coal is used to produce electricity by burning in coal-fire power stations, Fact2: Coal-fired power plants also contribute heavily to global warming., Question: Burning coal worsens (A) global warming (B) torn tendons (C) gender inequality (D) energy usage (E) Dehydration (F) Abnormal cell growth (G) The atmosphere (H) sound reproduction
Output: A