Which of the Following Best Explains the Increase in the Number

Multiple Choice

Which of the following best explains the increase in the number of interest groups during the twentieth century?​

A) ​increased public interest in public affairs
B) implementation of the Reagan administration's ​devolution policies of the 1980s
C) ​decrease in the overall population
D) ​amendments to the constitution allowing for interest group involvement
E) ​the expansion of government