According to Pluralists, Interest Groups Can Perform a Vital Function

According to pluralists, interest groups can perform a vital function in a democracy because

A) elections are inadequate in communicating people's preferences.
B) they increase the amount of money in elections, thus allowing more candidates to run for office.
C) they are difficult to form, so only the most intensely interested people will form groups.
D) the government is closed to all but the most numerous groups.
E) money is important in politics, and only groups can raise enough to be influential.