Which of the Following Observations About Advertising Agencies Is FALSE

Which of the following observations about advertising agencies is FALSE?

A) They are specialists in planning and handling mass-selling details for advertisers.
B) They are dependent on the advertiser and have a mixed viewpoint.
C) They may be full-service agencies who handle any activities related to advertising, publicity, or sales promotion.
D) They may even handle overall marketing strategy planning.
E) They can often do the job more economically than a company's own department.