Which statements accurately explain why the Renaissance began in the Italian city-states?
 Choose all answers that are correct.
 A
 Italy is in a good, central location for business and commerce so traders maintained contact with people and ideas from other places.
 B
 Italy had been the center of the Roman Empire, and people there saw Roman ruins and knew about the classics.
 Pope Pious X built an art school in Florence that attracted the finest talent from throughout Europe.
 Italian city-states were unified under one central government long before most other European countries