Which of These Describes a Disadvantage Associated with Personal Selling

Which of these describes a disadvantage associated with personal selling?

A) Presentations often provide little opportunity for consumer feedback.
B) Personal selling permits too much wasted coverage.
C) There may be inconsistency in the presentation of the message from one salesperson to another.
D) A salesperson cannot control to whom a presentation is made.
E) Personal selling is subject to extensive federal, state, and company regulation.