Answer is C Klemens von Metternich Facts. Prince Klemens von Metternich (1773-1859), the Austrian politician and diplomat, suppressed nationalistic and democratic trends in Central Europe but was also the architect of a diplomatic system which kept Europe at peace for a century. The 33 years after the end of the Napoleonic Wars are called in Austria—and to some extent in all of Europe—the Age of Metternich. The chief characteristics of this age are the onset of the Industrial Revolution, an intensification of social problems brought on by economic cycles of boom and bust, an increasingly mobile population, more demands for popular participation in government, and the rising tide of nationalism, all watched over by governments intent upon preserving the social, political, and international status quo.

Answer is A Perestroika (“restructuring” in Russian) refers to a series of political and economic reforms meant to kick-start the stagnant 1980s economy of the Soviet Union. Its architect, President Mikhail Gorbachev, would oversee the most fundamental changes to his nation’s economic engine and political structure since the Russian Revolution. Glasnost was taken to mean increased openness and transparency in government institutions and activities in the Soviet Union (USSR). Glasnost apparently reflected a commitment to getting Soviet citizens to discuss publicly the problems of their system and seek solutions