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: telephones are used for communication by two people by transmitting sound, Fact2: Cell phones are, bottom line, radios with a connection to a telephone company., Question: What are used for two people for communication with sound? (A) cell phones (B) messengers (C) energy (D) megaphones (E) A Greek letter (F) flashlights (G) gramophones (H) electricity
Example Output: A

Example Input: Fact1: heating salt water causes the water to evaporate while the salt remains, Fact2: Flash evaporators are used to make fresh water from salt water., Question: Doing what to salt water causes the water to become fresh water? (A) watershred (B) freezing (C) Regrows it (D) migrate (E) pouring (F) heating (G) cooling (H) erosion
Example Output: F

Example Input: Fact1: Viruses contain DNA but not much else., Fact2: DNA Structure DNA Structure DNA is a right hand double helix of polynucleotides., Question: what contain a right hand double helix of polynucleotides but not much else (A) orchids (B) newsprint (C) alleles (D) Viruses (E) soil (F) ferns (G) animals (H) plants
Example Output:
D