In which of the following elections might voters have the opportunity to choose among candidates representing the Democratic, Republican, and Libertarian parties?

__________are expenditures that are not coordinated with a candidate's campaign or a political party

A) Bundled expenditures B) Dispersed costs C) Concentrated costs D) Independent expenditures E) Unexpected costs

Surveys are considered efficient because they ______.

A. are relatively inexpensive B. can be completed relatively quickly C. can measure many variables without increasing time or cost D. all of these