which of the following statements is a major reason for the increased influence of public opinion polls in recent decades?
A) The government controls the validity of the polls before their publication.
B) Candidate-sponsored polls have been replaced with media-sponsored polls.
C) Computer technology allows a significantly smaller random sample to now be used to get accurate results.
D) Recent polls have been targeted exclusively at minority groups.
E) Candidates use poll results to target their message and their strategies.