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: wiring requires an electrical conductor, Fact2: Wires connected to a source of electricity., Question: An electrical conductor is required for the operation of: (A) water current (B) electricity (C) satellites (D) energy (E) to move people (F) gas lamps (G) trains (H) lightning
Example Output: B

Example Input: Fact1: a flashlight requires a source of electricity to produce light, Fact2: Lanterns and flashlights are sources of light used for camping., Question: What does a lantern use a source of electricity for? (A) heat energy (B) staying warm (C) enclose light (D) produce light (E) absorb heat (F) reflect light (G) to move people (H) protect them
Example Output: D

Example Input: Fact1: a warm front causes cloudy and rainy weather, Fact2: If warm air is advancing on cold air, the front is designated a warm front., Question: What is most likely to result from warm air advancing on cold air? (A) white outs (B) energy of moving objects (C) heat is produced (D) a tree falling (E) cloudy and rainy weather (F) tsunamis (G) freezing nitrogen (H) kinetic energy
Example Output:
E