Janelle Is a Girl Guide Who Is Trying to Sell

Janelle is a Girl Guide who is trying to sell enough cookies to win a trip to Disney World. Her parents don't have the time to take her out selling cookies door-to-door, so they hire Tamara, Janelle's cousin who is studying psychology at Carleton University, to help Janelle after school for a few weeks while she's trying to sell the cookies. The good news for Janelle is that Tamara has recently learned about the psychology of persuasion.
-After customers agree to buy a box of chocolate mint cookies,Janelle mentions she has two other types of cookies with her as well.She is using the ______________.

A) foot-in-the-door technique
B) bait-and-switch technique
C) door-in-the-face technique
D) amplification technique