Many Opinion Polls Focus on Evaluations of Government and Officeholders

Many opinion polls focus on evaluations of government and officeholders because:

A) most people enjoy following these polls
B) views on how government is performing are often an indicator of people's views on specific policies
C) political parties and campaigns use them to mobilize their supporters
D) the news organizations that sponsor them are attempting to shape public opinion by reporting the results of these polls
E) officeholders demand that this be done so that they have the information they need to serve their constituents