How did Thomas Edison's improved lightbulb contribute to industrialization in the United States?
O A. It created a demand for skilled glassblowers to make more
lightbulbs.
B. It allowed employers to extend the workday and increase
productivity
C. It was Edison's first success and brought him the funding to
develop other inventions.
D. It allowed factories to be built underground, which was less
expensive.

He invented the electric locomotive,phonograph,electric pen and copying system,kinetoscope,improved the telephone and improved the stock ticker and most importantly he invented the electric light bulb.

Explanation:

The major economic impact of the light bulb was that it allowed factories and other businesses to run even in the night. ... Light bulbs have been a big impact on the industrial revolution because it allowed the workers to work longer hours at night and in dark places. Without light, they could not work easily.

-I know it may not be the answer but I tried to find the best

honestly i love the walking dead, mainly the quotes. “well, pardon me young man, excuse the [insert bad word here] out of my gosh darn french, but did you just threaten me? ” sksk (of course it's not the exact words)

the answer is definitley b!