Dramatic Realignments, Such as the One That Occurred in 1932

Dramatic realignments, such as the one that occurred in 1932, may not occur again because

A) voter turnout has consistently decreased over the last forty years.
B) presidential candidates are rarely as popular with the voters as they used to be.
C) the Electoral College is malapportioned.
D) party labels have lost their meaning for a growing number of voters.
E) economic issues rarely dominate presidential campaigns.