Nonprofit Services Cannot Control Who Sees a Public Service Announcement

Nonprofit services cannot control who sees a public service announcement or when the message is given because

A) PSAs tie up too large a percentage of the service's advertising budget.
B) PSAs are traditionally boring and not well designed.
C) the timing and location of PSAs are under the control of the medium, not the organization.
D) PSAs have a very limited reach or scope.
E) PSAs are a form of two-way communication.