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: Fission takes place when an animal divides into two parts., Fact2: Flagellates reproduce by binary fission., Question: How do Flagellates reproduce? (A) diving into two parts (B) it keeps an organism warm (C) metabolic reaction (D) allow growth (E) photosynthesis (F) irradiation (G) The bending of a ray of light (H) By wind and rain
Example Output: A

Example Input: Fact1: exercise increases a body 's strength, Fact2: Strength is increased by resistance activities., Question: which of the following are a type of exercise? (A) resistance activities (B) fantasy football (C) sitting down (D) Relieve pain (E) Something that is self-aware (F) running for office (G) animal behaviorists (H) Riding a bike
Example Output: A

Example Input: Fact1: Invertebrates are animals that lack a vertebral column, or backbone., Fact2: Millipedes, spiders and other invertebrates are probably taken as well., Question: Millipedes lack what? (A) epidermal (B) segmented body (C) leg pairs (D) a cuticle (E) a vertebral column (F) diplosomites (G) Chlorophyll (H) biological diversity
Example Output:
E