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: a prism is used for refracting light, Fact2: Refraction is the bending of light cause by a speed change when it passes through different media., Question: What aspect of light changes when it passes from air into a prism? (A) power (B) seasons (C) speed (D) energy (E) a wave (F) Joules (G) heat (H) unique

Output: C


Input: Consider Input: Fact1: Many plants respond to the days growing shorter in the fall by going dormant., Fact2: Jade plants have an active and a dormant growing cycle., Question: What do Jade plants do in the fall? (A) Change colors (B) Go dormant (C) Reproduce (D) Wilt (E) Exfoliation (F) Refract it (G) relocation (H) It expands

Output: B


Input: Consider Input: Fact1: a barometer is used to measure air pressure, Fact2: Air pressure is a measure of the weight of the air., Question: What does a barometer determine? (A) 295 degrees Kelvin (B) precipitation (C) liquid pressure (D) visibility (E) water pressure (F) melanin content (G) melanin amount (H) weight of air


Output: H