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: Gymnosperms are vascular plants that produce seeds in cones., Fact2: Plants reproduce by seeds and rhizomes., Question: What do gymnosperms use to reproduce? (A) roots (B) cones (C) ovaries (D) family (E) CO 2 (F) instinct (G) embryos (H) Mitosis
Example Output: B

Example Input: Fact1: Streams may start with runoff or water seeping out of a spring., Fact2: Streams A stream is a sequence of characters., Question: a sequence of characters may start with runoff or what seeping out of a spring? (A) sodium (B) Joules (C) liquid (D) rivers (E) solutes (F) water (G) rain (H) SO2
Example Output: F

Example Input: Fact1: if an object is black then that object absorbs all visible light, Fact2: Just next to the visible light spectrum is the infrared spectrum., Question: The infrared spectrum is not absorbed by what objects? (A) eyes (B) PDAs (C) black (D) skin (E) Cars (F) humans (G) mines (H) matter
Example Output:
C