Janette goes into an electronics superstore to buy a new computer. The salesperson works with her to ...

Janette goes into an electronics superstore to buy a new computer. The salesperson works with her to find the right model, and she agrees to buy a new computer for 500 and a floor-model 18-inch monitor for 100. Just when she is ready to pay, the salesperson walks away for a minute and then comes back to inform her that the monitor she was ready to purchase cant be sold for less than 125. She agrees to the extra 25 even though they had initially agreed on the 100 selling price. Janette has fallen for the ________ technique of gaining compliance.
 
  a. low-balling
  b. bait-and-switch
  c. foot-in-the-door
  d. door-in-the-face