What part of the Roman government was made up of 300 elite families for hundreds of years?

According to jean-jaquees rousseau, individuals participating in a social contact agree to be ruled by

Hich explains why the constitution gave congress the power to create a system of federal courts? the constitution wanted congress to share power with the judicial branch. the constitution anticipated the need for courts lower than the supreme court. the constitution wanted congress to share power with the appellate courts. the constitution anticipated the need for courts equal to the supreme court.

Poland a: nato b: warsaw pact c: not a member of either alliance