Which of these became the cheapest and fastest way to travel from the east
coast to the west in the late 1800s?
a. airplanes
b. steamships
c. the transcontinental railroad
d. the new highway system

C

Explanation:

they took the railroads because it was much faster and cheaper then sailing across. also planes and highwsys werent made in the 1800s

C

Explanation:

Origin of the Transcontinental Railroad

The 1850s were a time of westward expansion for the United States. The California Gold Rush and Nevada Silver Rush pushed U.S. Americans further and further west with the promise of economic prosperity. In 1862, Congress passed the Pacific Railroad Bill and several grants that allowed financial support for the Central Pacific and Union Pacific railroad companies. These two companies then began constructing what would become the transcontinental railroad.

i think it was   tsar alexander ii