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").

Example Input: Fact1: habitat destruction causes animals to move to find shelter in another habitat, Fact2: All species are threatened due to the destruction of their natural habitat., Question: All species move to find shelter in another what (A) survive (B) streams (C) alluvial (D) habitat (E) coral reef (F) watershed (G) climate (H) loose soil
Example Output: D

Example 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.
Example Output: C

Example Input: Fact1: if a tree falls then sunlight becomes available to the surrounding plants, Fact2: Encroaching trees rob the orchids of the sunlight they require., Question: What happens to a orchid when a nearby tree falls? (A) dormant state (B) It gets more light (C) It becomes dormant (D) They may not survive. (E) It remains dormant (F) It dies (G) It gets less water (H) It less light
Example Output:
B