Answer:
Option A. The two-way flow of communication between a buyer and seller, often in a face-to-face encounter, designed to influence a person’s or group’s purchase decision.
Step-by-step explanation:
The reason is that the personal selling is the face to face selling which means two way flow of communication is necessary. The seller will use his marketing exprience to influence the buyer which results in greater sales and customer satisfaction. So it is the face to face selling method which most of the companies opt and this way of selling is known as personal selling.