Use the image to answer the question.

How did the U.S. government BEST support and encourage the completion of the project shown?

A.
by sending former Civil War soldiers to work on the railroad

B.
by breaking up Native American reservations into homesteads

C.
by giving railroad companies land and development incentives

D.
by founding port cities on the West Coast to trade with East Asia

C. by giving railroad companies land and development incentives. The image shows a group of workers building the Transcontinental Railroad, which was completed in 1869. The U.S. government passed the Pacific Railroad Acts of 1862 and 1864, which provided land grants and loans to railroad companies to encourage the construction of a transcontinental railroad. This support and encouragement greatly aided in the completion of the project.