What is a potential drawback to some campaign practices and tactics?
A. Candidates will campaign in "battleground" states and ignore those that they think will not effect their results.
B. Candidates campaign only on the radio, denying millions the chance to see them.
C. Television is the primary method of educating voters, thereby denying many without television the opportunity to judge a candidate.
D. Candidates only campaign through public debates in town halls and parks.
