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: matter vibrating can cause sound, Fact2: Thus, sound is a wave in air ., Question: what can matter vibrating cause? (A) Pollution (B) energy (C) Relieve pain (D) kinetic energy (E) wave in air (F) Energy. (G) murmur (H) Greenhouse gases

Output: E


Input: Consider Input: Fact1: Many consumers feed at more than one trophic level., Fact2: Consumers are heterotrophs that feed on tissues of other organisms., Question: What may eat other organisms at more than one trophic level? (A) barnacles (B) chickens (C) fur seals (D) humans (E) heterotrophs (F) mammals (G) animals (H) rabbit

Output: E


Input: Consider Input: Fact1: plant reproduction often requires pollen, Fact2: Hay fever is caused by an allergy to pollens or moulds., Question: Hay fever is caused by  (A) one celled organisms (B) bacteria (C) viruses (D) chemical messengers (E) carbon (F) heat energy (G) plant reproduction (H) single-celled organisms


Output: G