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 flashlight requires a source of electricity to produce light, Fact2: Lanterns and flashlights are sources of light used for camping., Question: What does a lantern use a source of electricity for? (A) heat energy (B) staying warm (C) enclose light (D) produce light (E) absorb heat (F) reflect light (G) to move people (H) protect them

Output: D


Input: Consider Input: Fact1: Many corals secrete an exoskeleton that builds up to become a coral reef., Fact2: Good examples are Bubble coral, Elegance coral, Frogspawn and other Euphyllia corals., Question: What is secreted by organisms like frogspawn to become a reef? (A) exocrine glands (B) food and shelter (C) exoskeleton (D) bones (E) Energy (F) Chemical energy (G) plasma (H) Energy.

Output: C


Input: Consider Input: Fact1: Plants use unsaturated fatty acids to store energy., Fact2: Among the unsaturated fatty acids are compounds with one, two or three double bonds., Question: Plants use what type of compounds to store energy? (A) thermal insulators (B) It helps them survive (C) during the day (D) spring, summer, autumn, winter (E) compounds with double bonds (F) hydrogen and oxygen (G) Something with exactly eight protons (H) it helps plants in growing


Output: E