<u>A. Popular sovereignty.</u>
This political doctrine holds that all political power that governs society (authorities of states and federal government) is inherent in the people, that is to say, people create it, gives consents to it and sustains it. The U.S. Constitution this concept by guaranteeing people's right to choose their representative (individuals that advocate for their needs, desires, and projects as a society ) through fair and democratic elections.
" The Missouri Compromise was a line drawn on the US map in 1820. It extended the southern boundary of MIssouri to the then western border of the US. The border was the western extension of the land in the Louisiana Purchase."
The Panama Canal created a major economic boost for the united states because it allowed for a much shorter shipping route to Asia/Europe, and of course was a military/security advantage because it allowed for faster troop movements.
The New England colonies
hope it helps :)
I know why we have cabinets today is to have advisors who are experts in their fields assisting him so I would say it was the same back then. Hope that helps!