Which answer best describes a main benefit of the Transcontinental Railroad?
a
It proved to the world that the United States was capable of great feats of engineering.

b
It created safe, high-paying jobs for immigrants who wanted to work building the railroad.

c
It created jobs, towns, and a quick path for settlers to come to California to try to make their fortune.

d
It raised the prices of goods shipped across the country, making merchants and the railroad companies rich.