Which of the Following Statements Describes a Limitation Associated with the Use

Which of the following statements describes a limitation associated with the use of radio as an advertising medium?

A) The production of radio advertising is expensive.
B) The absence of clutter means radio advertising tends to be very uncreative.
C) Individual radio stations trying to sell to an advertiser can often cause information overload.
D) The high number of stations in most markets means there is a great deal of audience fragmentation.
E) All of the above are limitations of radio as an advertising medium.