Answer: C) Technical selling
Step-by-step explanation:
Technical selling or technical sales is an act in which a sales person helps to address customer's needs by understanding what they needs which is a determinant of what product to buy.
Technical selling involves the sales personnel addressing the need of customers, explaining the type and features of the product they needs, network with them and make sure they are satisfied.
A technical sales person must have the ability for effective communication and have good interpersonal skills so as to maintain a good relationship with customers.