Gertie saw a pair of jeans that she was willing to buy for $35. The price tag, though, said they were $29.99. Therefore:
选项：

A:Gertie should not buy the jeans because the price is not equal to her reservation price.;
B:Gertie should buy the jeans because the price is more than her reservation price.;
C:Gertie should not buy the jeans because they will be of lower quality than she expected.;
D:Gertie should buy the jeans because the price is less than her reservation price.