A suburb is a mixed-use or domestic area, surviving either as part of a city or urban area or as a separate household community within commuting reach of a city. Suburbs direct to generate around cities that have an excess of neighboring flat land. Suburbs first began on a large scale in the 19th and 20th centuries as an outcome of developed railway and road transport, which directed to a rise in commuting. In common, they have lower population densities than inner city neighborhoods within a modern area.
The answer is B. The compromise was primarily for "fair" representation in congress for the slave states as well as keeping the states from fluctuating too high from state to state based off if its a slave state or not