Answer: (B) Personal selling
Step-by-step explanation:
The person selling is basically refers to the two-way communication process in which we sell our products and the services face to face to the customer.
The personal selling is also known as the interaction form of selling the products to the user.
The personal selling is one of the most expensive promotion tool as it is hardly used for advertising the products. It mainly involve spreading the information regarding the specific organization products and the services.
Therefore, Option (B) is correct.