Mills Talks About Unemployment, War, Marriage, and the City in Order

Mills talks about unemployment, war, marriage, and the city in order to show that

A) people can choose to be depressed about the state of the world or be optimistic and hopeful.
B) modern society is much more complex than premodern societies.
C) human nature is the prime cause of both happiness and unhappiness.
D) what happens to individuals and what they do is strongly influenced by their