Nonprofit service organizations use them, but public service announcements (PSAs)
A tie up a very large a percentage of the advertising budget.
B are boring and rarely well designed; consumers usually tune them out.
C are under the control of the medium where aired, not the organization.
D have a very limited reach and frequency.
E are an ineffective form of advertising.
Answer: C are under the control of the medium where aired, not the organization.