Answer: adaptive selling
Explanation: In simple words, adaptive selling refers to the ability under which an employee changes his or her behavior with the change in the status of the clients.
Under such style of selling, the salesman performing highly focus on the type of customer, the situation in which sales is made and the feedback received and tailors his or her approach to sales accordingly.
In the given case, Tony is stating different facts regarding the product for different customers. Hence we can conclude that he is doing adaptive selling.