The United States Is Thought to Be Rich in Social

The United States is thought to be rich in social capital, which is key in explaining what paradox in American politics?

A) Political parties are weaker in the United States than in other countries, but the majority of Americans claim a party identification.
B) The many different levels of electoral politics in the United States causes voter fatigue and depresses turnout.
C) Americans are less likely to write letters to political representatives than citizens of other countries, but vote at higher rates.
D) Although Americans tend to vote at lower rates than other democracies, they join organizations and clubs at higher rates than citizens of other countries.
E) All of these are correct.