The Iron Curtain was a metaphorical name for a very real, heavily guarded (hence the "Iron") border between the Communist/Socialist and Capitalist states in Europe. The divide also run from north to south, Separating the continent into Western and Eastern parts - so the correct answer is:
the political divide between Western and Eastern Europe
Ralph Nader siphoned votes from Al Gore. In 2016 Jill Stein did the same to Hillary Clinton.
The correct matching is as follows:
1. LITERACY: Ability to read and write.
2. LIBERALISM; A political orientation that favors social progress by reform and by changing laws rather than by revolution.
3.PRAGMATISM: A way of thinking that is more concerned with results than with theories.
4. SOCIALISM: Is a system of social organization in which production and distribution of good is owned collectively or by a centralized government.
5. UTILITARIANISM: Socialism theory that emphasizes practical usefulness of things, not their outward beauty.
6. REPUBLICANISM: The political orientation of those who hold that a republic is the best form of government.
The answer is either B or C.