Answer:
Machines
Explanation:
In business, mass production refers to the practice of increasing the output of production (finished goods) as much as possible.
In order to do this, a business need to eliminate as much inefficiencies as possible within the production process. Most of those inefficiencies often come from the limitation that we have as humans. (our body need to rests, so we couldn't continue the production after a couple of hours).
Machines do not possess such limitation. We can make the machines to continue the production as long as we have enough power to turn it on. So, growing the share of machines to do the work is crucial for mass production.
The Articles of Confederation was our first plan of government after the Revolutionary War. One success this plan of government had was in how it dealt with the organization and the sale of western lands. The Land Ordinance of 1785 was an excellent law that allowed for an orderly process to deal with lands in the West.
You can talk with complete depth, there are many reasons that U.S came into existence.
There are also reasons such as the loyalty of the locals were shifting as they felt different from the British. Moreover, the parliament in England was less interested with the sentiments of Americans, who were treated as a colony.
Later, you can explain that why America expanded.
It can include Manifest Destiny.
Discuss it a bit, later you can also put slavery as it is also considered to be a reason.
It was the set of beliefs that founded U.S and the abhorrence that was created in the hearts of Americans.
Out of the choices given, the one that was NOT a contributing factor to the fall of the Roman Empire was the decline in trade. The correct answer is D, decline in trade.