I am American and I am using this app too. This app is for anyone who can access it no matter what country they live in.
B) Many Italian city-states of the Renaissance were republics.
Explanation:
Italy was a group or the number of city-states, each of which has its own rule such as the Pope ruling in Rome, the Medici family that is ruling in Florence, the Doge basically ruling in Venice, the Sforza family served for ruling in Milan, the Este family which was ruling in the Ferrara and there is a long list that is consist of all the states of the cities and the ruling families of the ruling people.
The Wilmot Proviso proposed an American law to ban slavery,
A tariff on imported goods can lead to lower un employment through increased consumption pf domestic production.
B both systems greatly increased europeans total wealth