Answer:
The need for slavery grew because of trade between colonies.
Explanation:Because the slavery is the trade.
The correct answer should be A. Oligopoly
It is a state of market where the entire market is lead by a few owners of production factories or sellers. This wasn't a result of the new market structures in the late 1800s.
In the 1860s, most factories were located in the North of the United States, mostly because the South was largely agricultural and remained this way for many years.
<span>He alleged that the US State Department had been infiltrated by communists as had Hollywood and other American institutions. This created a paranoic attitude that America was being systematically brought down from within by communists who were trying to take over the world. Consequently many American politicians argued for a stronger line to be taken on communism.</span>