3. (1) The United States ranks near the bottom among the world’s democracies in the percentage of eligible citizens who participate in national elections. (2) One reason for the low voter turnout is that individual Americans are responsible for registering to vote, whereas in most other democracies, voters are automatically registered by government officials. (3) In addition, unlike some other democracies, the United States does not encourage voting by holding elections on the weekend or by imposing penalties, such as fines, on those who do not participate. The main patterns of organization of the selection are
a. cause-effect and contrast.

b. time order and comparison.

c. definition-example and time order.