3. In the 1870s, electricity
a. became common in most homes in the United States.
b. was replaced by atomic energy as a major power source.
c. became available as a new source of power for industry.
d. was used in light bulbs for the first time.

in the 1800s, locomotives powered by steam made transportation faster and cheaper. the resulting rapid growth of railroads led to the connection of the atlantic and pacific railroad in oklahoma city in 1897.

in the last years of the century, the improvement of steam-based engines the expansion and growth of railroads. this growth increased when the companies started to build and expand, such as the atlantic and pacific railroad, which connected new mexico with california, and missouri with oklahoma. many of these new networks were built in oklahoma, and these changes transportation henceforward.

c is your answer have a great day make the brainlest

treating native americans justly and giving them equal rights as citizens of the united states" was not a way in which americans sought to solve the indian problem. removal was the most popular idea.

the south did not want the federal laws to overrule the state laws.