阅读下列短文，从下面每小题的A、B、C、D四个选项中选择最佳选项。

One day, a little white rabbit went to abakeryand asked, "have you got 100 buns(小面包)?"The shopkeeper answered," sorry, we don't have that many" "oh, that's a pity!" said the rabbit and left disappointed. The second day the little white rabbit went to the bakery again and asked," have you got 100 buns?" The shopkeeper again answered," sorry, we don't have that many" "oh, that's a pity," said the rabbit, and again left, disappointed. The third day the little white rabbit went again to the bakery and asked. "have you got 100 buns?"," oh, yes, we have 100 buns today!" the shopkeeper answered gladly." "that's great, I'll buy two, thank you!" the shopkeeper stood silently.