D) to prevent neighborhoods from becoming segregated
Because the United States struggled to Unite and quell the rebellion, the answer is B. The United States realized it needed to be more centralized in order to deal with internal and external threats.
It happened because the consuls only cared about their own personal wealth and not for the people. The senate got richer and richer while the people got poorer and poorer. It ended with the rise of the Empire and the rule of an Emperor. The disadvantage was that all of the power was in the hand of a single person and often the Roman emperors were tyrannical.
The general structure in 1750 is well off farmers master artisans and craftsmen, doctors, and lawyers
