How did Italian city-states become so powerful?

How did Italian City states like Florence and Venice become rich and powerful?  *1 pointThrough warThrough religionThrough tradeNone of the Above

Who were the true ruling class of Italian City states? *1 pointPowerfulPopeWarrior KingsWealthy MerchantsNone of the Above

what kind of strategy is discussed to help unify the Italian states?

Italian city-states became wealthy throughMultiple choice question.A)farming.B)trade.C)war.D)wine-making.

The city-states of Northern Italy were often engaged in conflict with one another during the Renaissance. One of the reasons for frequent violent conflict between the city-states was attempts to expand their territories and control larger regions of the hinterland.Why did the city-states engage in battle with one another in an attempt to gain more hinterland territory?A) Based on the feudal system, practiced during the Renaissance in the city-states, the more land a noble controlled, the wealthier and politically influential he became.B) City-states relied on the hinterland region to grow crops that could be traded in the port cities for luxury items from the Far East and Africa.C) Most of the city-state population lived in the hinterland, so the greater the hinterland region a city-state controlled, the more income it had from tax-paying citizens.D) Each city-state was independent and had a different religion and culture from the other city-states. This led to frequent attempts by one city-state to capture and convert or assimilate another.