The Buying Procedure for Television Time Is

The buying procedure for television time is:

A) not done on a national basis-but rather a station-by-station basis.
B) a process that can usually be accomplished quickly by an experienced media buyer.
C) so complex that most large advertisers seek the assistance of ad agencies or media-buying services.
D) not a purchase that requires any special expertise.
E) so simple that most large advertisers use in-house media buyers.