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: Tunicates reproduce sexually., Fact2: Sea squirts are the best known tunicates., Question: what reproduces sexually? (A) orchids (B) mountains (C) viruses (D) humans (E) sea squirts (F) Most plants (G) h2o (H) insects
Example Output: E

Example Input: Fact1: Phylogeny is the evolutionary history of a group of related organisms., Fact2: Metazoan phylogeny Phylogeny of phyla is poorly understood., Question: What is a phyla? (A) most diverse organism group (B) single cell microorganisms (C) microscopic organisms (D) some prokaryotes (E) unicellular organisms (F) aquatic organisms (G) single celled organisms (H) a group of related organisms
Example Output:
H