Will give 10 points pls ! 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)italian city-states were unified under one central government long before most other european countries, and that allowed the government to sponsor the arts.

c)italy had been the center of the roman empire, and people there saw roman ruins and knew about the classics

d)pope pious x built an art school in florence that attracted the finest talent from throughout europe

pls !