Which two of the following steps did the Congress of Vienna take to build political relations among countries?

The Congress of Vienna brought together the European Great Powers together immediately following Napoleon and France's defeat in 1914. The goal of the Congress was to restore order to the European Continent. The leaders of Britain, France, Russia, and Austria sought to do this through re-establishing the balance of power in Europe to prevent future conflict. Through this "congress" which was in fact a series of informal conversations between the countries leaders led to the establishment of numerous treaties between the Great Powers. As parts of these treaties there were also large territorial redistributions of land amongst the great powers.