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: 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: Lions live in social groups called prides., Fact2: Lions live in Africa., Question: where are there social groups called prides? (A) under the sea (B) outer space (C) complex (D) protected (E) arctic (F) fur seals (G) Summer (H) africa
Example Output: H

Example Input: Fact1: if a thermal conductor is exposed to a source of heat then that conductor may become hot, Fact2: Copper is a great thermal conductor., Question: If what is exposed to a source of heat then that conductor may become hot? (A) Energy. (B) heat sources (C) energy (D) coal (E) an object (F) copper (G) plastic (H) thermometers
Example Output:
F