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: recycling has a positive impact on the environment, Fact2: Newsprint is recycled into new paper, cardboard, and insulating material., Question: Making cardboard from what has a positive impact on the environment? (A) newsprint (B) bamboo (C) animals (D) heat energy (E) earth (F) less water (G) sunlight (H) an object

Output: A


Input: Consider Input: Fact1: telephones are used for communication by two people by transmitting sound, Fact2: And the sound of their voice becomes important as well., Question: What is transmitted with telephones? (A) voice (B) copper (C) waves (D) smell (E) cancer (F) energy (G) HIV (H) power

Output: A


Input: Consider Input: Fact1: energy is used for heating a building by a heating system, Fact2: Geothermal energy is used for heating and cooling systems., Question: What is a way to heat a building? (A) sound (B) Movement of an air mass (C) burning coal (D) static electricity (E) In the winter (F) potential energy (G) by indirect light (H) geothermal energy


Output: H