Railroads encouraged the growth of settlements in the west because they

a. paid people to settle the great plains.
b. paid to remove local native americans, making settlement safe.
c. allowed police forces to travel quickly.
d. made it easier to move products from the interior of the country to the cities.

Hi There! :

Railroads encouraged the growth of settlements in the West because theyA. paid people to settle the Great Plains. 
B. paid to remove local Native Americans, making settlement safe. 
C. allowed police forces to travel quickly. 
D. made it easier to move products from the interior of the country to the cities. 

 made it easier to move products from the interior of the country to the cities.