Which of the Following Represents a Reason for a Firm's

Which of the following represents a reason for a firm's use of personal selling promotions?

A) It is the only form of selling that works.
B) It provides a direct link between the seller and the buyer.
C) The salesforce has the capability of contacting the greatest number of potential customers.
D) Personal selling provides the lowest promotional costs per contact.
E) Sales promotions must be convenient and accessible when the purchase decision is made.