Research Indicates That One Important Reason​ for the Decline of Third-Party

Research indicates that one important reason​ for the decline of third-party voting starting in the 1930s may be

A) disenchantment with rules promulgated by the Federal Election Commission restricting who can vote for third parties.
B) ​realization that issues raised by third parties are always insignificant.
C) ​leftward drift of the Democratic Party to adopt issues otherwise raised by third parties.
D) ​voter fraud sabotaging the actual results earned by third-party candidates.
E) belief that the Republican Party was going to have a platform that would accomplish anything a third party would otherwise work toward.