Carla has just written out a check for $13,999 to pay for her new car. Although the salesperson had initially accepted her check, she is now told that there was a mistake and that the final total should really be $14, 250. Carla writes another check for $251 to cover the difference so that she can drive out with her new car. Carla has just fallen prey to a questionable sales practice called

A. the "dissonance game."

B. "keep 'em guessing."

C. "bait-and-switch."

D. "lowballing."