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 mirror is used for reflecting light, Fact2: Light seems to travel in rays or beams., Question: what can a mirror be used to reflect? (A) noble gases (B) air particles (C) glass (D) focusing a lens (E) rays or beams (F) photons (G) sun's heat (H) an electron lens

Output: E


Input: Consider Input: Fact1: Annelids are worms such as the familiar earthworm., Fact2: An earthworm has five hearts., Question: One example of an annelid has how many hearts? (A) three (B) Five (C) white (D) warm (E) four (F) strong (G) long (H) small

Output: B


Input: Consider Input: Fact1: Most aquatic organisms do not have to deal with extremes of temperature or moisture., Fact2: Fish and other aquatic creatures are no exception., Question: What do most fish not have to deal with? (A) negative feedback (B) feedback mechanisms (C) Exposure to oxygen and water (D) the environment (E) Temperature extremes (F) protein foreign to the body. (G) antigens that cause allergy (H) Warmer temperatures


Output: E