Given the question: You are presented with the question "an incandescent light bulb converts electricity into light by sending electricity through what?" and the following answer choices: - hair-thin molecules - hair-thin spokes - epidermis and dermis - hydrogen and oxygen - activation energy - an electron lens - hair-thin hairs - hair-thin fibers of glass Now knowing that an incandescent light bulb converts electricity into light by sending electricity through a filament and fiber optics works by carrying light along hair-thin filaments of glass, choose the best answer.
The answer is:
hair-thin fibers of glass