Which of the Following Is True About Sales Promotion

Which of the following is true about sales promotion?

A) It is often used to replace advertising and personal selling because of its effectiveness.
B) It is the least expensive of all promotional efforts and is used to replace personal selling.
C) It encompasses all promotional activities other than personal selling, advertising, and public relations.
D) It is the most expensive of all promotional efforts and is therefore rarely utilized as promotion.
E) It has become more important to target sales promotion at consumers than at resellers.