Which of the Following Statements Is NOT True About the American

Which of the following statements is NOT true about the American party system?

A) American parties are more ideologically extreme than many of their European counterparts.
B) American parties have recently increased their party discipline.
C) American party organizations are decentralized.
D) The lack of success of third parties in the United States is the result of election rules.
E) Third parties occasionally have had a dramatic impact on presidential election outcomes.