In Which Case Is Lowballing Least Likely to Work

In which case is lowballing least likely to work?

A) Jeremy is lowballed after he puts a down payment on a car which he has been planning to buy for months.
B) Cassie is lowballed after she spends thirty minutes filling out contracts on her car purchase.
C) Tess is lowballed, and although before the lowball she could get the car she wanted for $50 less at the dealer she chose, after the lowball she would save $800 if she backed out of her deal.
D) Philip is lowballed, and he's in a hurry to close the deal because he's trying to finish it on his lunch break.