Answer:
Animals were used for labor and farming tasks, bud.
Explanation:
"The promise of an easy life" was not a reason that people moved west in the late 1800s, since in fact many people knew that this new life would be quite dangerous and difficult.
The correct answer is A. Technological advances such as s<em>team power, air brakes, automatica lubricators and steel tracks</em> have affected the railroads very positively, since it has made it possible that the rail network could become a safer, more efficient and more reliable means of transportation for goods.
A - "as a government that serves the people"
