You Have Been Asked to Try a Firm's New Line

You have been asked to try a firm's new line of potato chips at no cost to you. Now you have been approached by the firm and asked if you would pay $1.00 per bag for these chips (regular price $1.99) or would you prefer your regular brand of potato chips. You choose your favourite brand of chips instead. The firm then offers you the option of purchasing their chips for $.90 per bag. You are participating in a

A) controlled test market.
B) sales-wave research.
C) commercialization of a new product.
D) test market.
E) simulated test market.