B. what act start the railroad boom, and how did it do so?

The railroad boom began in 1862, when president Abraham Lincoln signed the Pacific Railway Act. This act offered two companies land along its right of way in order to speed progress. What railroad had a more difficult time with building their rail line due to the Rocky Mountains.

Explanation:

legislative branch:

one of the three branches of government divided between the senate and the house of representatives.

- creates or makes laws

- power to override a veto

executive branch:

one of the three branches of government, headed by the president.

- enforces or carries out laws

- power to veto a bill sent to it by congress

judicial branch:

one of the three branches of government, headed by the chief justice of the supreme court.

- interprets laws

- power to declare laws or actions by the government unconstitutional