How did the completion of the Transcontinental Railroad affect the U. S. economy?

The answer is below

Explanation:

Following the completion of the transcontinental railroad construction in 1869, it is believed that the completion of the Transcontinental Railroad affects the U.S. economy in certain ways, some of which are:

1. It connects the east coast to the west coast, thereby linking production points to the markets.

2. American settlers easily migrated from the eastern part of the United States to the western part.

3. Encourage the formation and development of various cities along the railroad lines.

4. It increases the production rates in the country by connecting points of natural resources or raw materials mostly in the west and central to the manufacturing points mostly in the east.

answer; i believe that the correct answer is (chronological order);

william mckinley

ulysses s. grant

benjamin harrison

by the way what grade r u in k12?