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").
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Question: Fact1: Mutualism is a symbiotic relationship in which both species benefit., Fact2: Dogs and humans are symbiotic species., Question: what exists between dogs and humans? (A) mutualism (B) gravity (C) communication (D) antigens (E) several genes (F) space between (G) electrons (H) german shepherd

Answer: A


Question: Fact1: if a living thing becomes too cold then that living thing will die, Fact2: Plants are also the oldest living things., Question: what dies if it becomes too cold? (A) plants (B) starfish (C) trout (D) planets (E) trees (F) ice (G) bears (H) clouds

Answer: A


Question: Fact1: plucking a string can cause that string to vibrate, Fact2: For example, sound is a wave of vibrating air., Question: What results from plucking a string? (A) light waves (B) sound waves (C) guitar (D) friction (E) chemical changes (F) kinetic energy (G) mechanical (H) violinist

Answer:
B