Which statement BEST describes the way that Congress spurred the building of the Transcontinental Railroad with the passing of the Pacific Railway Act of 1862?
Responses
A It allowed the U.S. to acquire the land from Mexico to build the railroad.
B It gave the railroad companies large land grants along the railroads they built.
C It approved government funding that encouraged the growth of the steel industry.
D It authorized the U.S. Army to provide the labor that was necessary to build the railroad.