One Difficulty Associated with Using Advertising as Part of a Marketer's

One difficulty associated with using advertising as part of a marketer's IMC efforts is

A) breaking through the clutter of other messages targeted for the same audience.
B) that it is more expensive than personal selling.
C) that it only works when communicating to the most uninformed consumers.
D) that government regulations have significantly decreased allowable advertising frequencies.
E) that it is considered old-fashioned by many younger consumers.