At the same time, the growth of democracy has become one of the most powerful political movements of our age. In Latin America in the 1970s, only a third of the population lived under democratic government; today over 90 percent does. In the Philippines, in the Republic of Korea, free, contested, democratic elections are the order of the day. Throughout the world, free markets are the model for growth. Democracy is the standard by which governments are measured. –Address at Moscow State University
Ronald Reagan

How does Reagan substantiate his opinion that democracy is a powerful force?

by stating that it is a powerful political movement
by giving examples of countries that have become democracies
by explaining how the free market works
by discussing ways governments are measured