Instructions: 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").
Input: Fact1: a light bulb requires electrical energy to produce light, Fact2: Black numbers on a white background are easier to see in darkness or bright light., Question: Bulbs produce electrical energy to what? (A) reproduce (B) Change colors (C) rain or sun shine (D) adding heat (E) look at the sun (F) power up cars (G) see in darkness (H) walk through yards
Output:
G