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").

Fact1: nuclear reactions in stars causes stars to produce light, Fact2: And, of course, the Sun is a star., Question: What in the sun causes the sun to produce light? (A) energy of moving objects (B) hydrogen and oxygen (C) heat energy (D) water (E) solar rays (F) rotation (G) nuclear reactions (H) kinetic energy
G

Fact1: an incandescent light bulb converts electricity into light by sending electricity through a filament, Fact2: Electrical energy is also energy., Question: What part of a light bulb has energy run through it, converting energy into light? (A) adding heat (B) sun's heat (C) cotton (D) heat energy (E) glass (F) light (G) filaments (H) broken light bulbs
G

Fact1: condensation causes clouds to form, Fact2: Rainy clouds cause rain, and excess water vapor from clouds is the basis of rainbows., Question: What can be caused by condensation? (A) rain (B) wind (C) gills (D) Gases (E) drought (F) heat (G) breeze (H) gas

A