To connect the East Coast with the West Coast by rail required the railroads to overcome many obstacles. Which of these was the greatest obstacle to a transcontinental rail line?

in 1859, brown and 21 of his followers attacked and occupied the federal arsenal in harper's ferry. their goal was to capture supplies and use them to arm a slave rebellion. brown was captured during the raid and later hanged, but not before becoming an anti-slavery icon. abolitionist and insurrectionist

explanation:

it was the shinto. the answer is c.

you didn't list the options. however, a few communist countries today are: the people's republic of china, north korea, and cuba.