In addition to speeding up the transportation of goods, the transportation revolution also contributed to the growth of
A
new cities across the country
B.
the slave trade in America
free public education
C
D
labor unions on the East coast.

Respuesta :

Answer: D: Labor unions on the East coast. Soon, both railroads and canals crisscrossed the states, providing a transportation infrastructure that fueled the growth of American commerce. Indeed, the transportation revolution led to development in the coal, iron, and steel industries, providing many Americans with new job opportunities.

Explanation:

Answer:

A.  new cities across the country.

Explanation: