Winston Wants to by a New Car

Winston wants to by a new car.Before going to the dealership,he obtains detailed information from the Internet regarding exactly how much three dealerships paid for each car.At the first dealership,he negotiates a final "best offer" in writing,then walks out,and goes to another dealership to see if they can make him an even better deal in writing.He goes back to the first dealership with the "best offers" in hand and tries to get an even better deal.Winston

A) is using the highball technique.
B) is using the door-in-the-face technique.
C) is protecting himself against the use of compliance techniques by salespersons.
D) will probably pay more for the car than if he had negotiated with only one dealership.