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").

[EX Q]: Fact1: coal is used for generating heat by burning, Fact2: Gasoline is extremely flammable and can explode and burn if ignited., Question: coal is used for generating heat and can what? (A) melt (B) explode (C) run (D) kill (E) heat (F) energy (G) stay warm (H) freeze
[EX A]: B

[EX Q]: Fact1: a light bulb is used for seeing in the dark, Fact2: Conventional light bulbs generate light by heating a filament., Question: What is helpful for seeing in the dark? (A) an electron microscope (B) an electron lens (C) microscope (D) closing the blinds (E) blackouts (F) closing your eyes (G) focusing a lens (H) heating a filament
[EX A]: H

[EX Q]: Fact1: Marine species live mainly in shallow coastal waters., Fact2: Marine Science Marine science is the study of the sea., Question: What live mainly in shallow coastal waters? (A) Sea species (B) Coast guards (C) animals (D) Live Whales (E) Shallow people (F) fur seals (G) a fish (H) parasites
[EX A]:
A