The steel industry played an important role in getting both raw materials and finished goods to far-off markets. Which of the following helped speed up the movement of goods and people across the United States in the late 1800s? A.mass-produced steamboats to move goods on the Mississippi River B.inexpensive manufactured parts needed in the automobile industry C.giant steel bridges built across the Ohio and Missouri Rivers D.cheap and effective production of steel rails for railway lines



Answer :

During the late 1800s, the railroad expanded to help goods and people travel across the United States faster than ever before. 

D. cheap and effective production of steel rails for railway lines. 
D. cheap and effective production of steel rails for railway lines