Nicolette Garrison works part-time at an independent record store. Whenever her friend, Jacob Barker, comes into the store during one of her shifts, he picks up a CD and brings it to the register where Nicolette is stationed. After ringing a "no sale" transaction on the cash register, Nicolette pretends to swipe Jacob's credit card for payment. She puts the CD in a bag and gives it to Jacob, who walks out without actually paying for the merchandise. What kind of scheme is being committed?
a. Cash larceny
b. Sales skimming
c. Fake sale
d. False refund