What was one major way that the central pacific and union pacific railroad companies made a large profit in the 1800s?
a.)they sold railroad lines back to the government at a profit.
b.)they owned thriving businesses in the towns that developed along the railroad.
c.)they built railroad monopolies and continually raised prices.
d.)they sold pieces of land that were granted to them to build the railroad.

C.)They built railroad monopolies and continually raised prices.

Explanation:

The construction of the railroad brought a lot of benefits to the country, and in particular to those living West. However, the companies that built the railroads also benefitted from this significantly. The Central Pacific and Union Pacific railroad companies were responsible for creating a monopoly when it came to railroads. This allowed them to control the whole market, and thus the prices they implemented. By continually raising prices, these companies were able to make a large profit.