The Authors of the Text Conclude That Congress's Image Problem

The authors of the text conclude that Congress's image problem is the result of:

A) the high reelection rates of incumbents
B) a long and unfortunate history of rampant political corruption in Congress
C) the lack of civility shown by Democrats and Republicans toward one another in Congress
D) negative campaigning and attack ads, which have become more vicious in recent years
E) efforts to balance constituents' interests and the national good, which creates contradictory policies