Answer :
Answer:
c
Light bulbs made it efficient for factory workers to work at night.
Explanation:
Even though Thomas Edison did not invent the light bulb, he indeed helped to produce the first commercially viable one. Before him, light bulbs were not durable and could not be sold. Edison was able to create a durable incandescent material that would make the light bulb durable, he designed a new technology that eliminated the air from inside the bulb and also developed a filament material that had high resistance.