Which of the Following Statements Is Accurate About Sales Promotion

Which of the following statements is accurate about sales promotion? ​

A) ​Sales promotion can increase sales by providing extra purchasing incentives.
B) ​Sales promotion encompasses personal selling.
C) ​Sales promotion has increased dramatically, primarily at the expense of personal selling.
D) ​Product characteristics are not relevant when deciding on sales promotions.
E) ​Sales promotion encompasses public relations.