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: 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: disease has a negative impact on an organism, Fact2: Organisms or living beings are literally things that are alive., Question: Disease has what kind of effect on a living being? (A) it has a negative effect (B) Abnormal cell growth (C) direct damage to the lungs (D) it helps living beings eat (E) it makes living beings faster (F) it is good for living beings (G) cause their death (H) Plant growth is reduced

Output: A


Input: Consider Input: Fact1: microbial fuel cells convert chemical energy into electrical energy, Fact2: Electric generators convert mechanical energy into electric energy., Question: What do microbial fuel cells and electric generators both create? (A) sunlight (B) electricity (C) vehicles (D) chemical energy (E) Greenhouse gases (F) engines (G) to move people (H) light


Output: B