Question

How did the transcontinental railroad affect US commerce?
The railroad did not affect commerce in the United States.
The railroad increased commerce by making shipping easier and cheaper.
The railroad led to major corruption in business, which hurt commerce.
The railroad decreased commerce by making trading posts disappear.

Answer 1

soo c

Answer 2

Not quite.

Answer 3

i think b

Answer 4

That's right.

It made carrying goods across the United States much simpler and quicker. This made shipping faster and cheaper and dramatically increased trade.