在众多的客户中，选定适合本企业服务的客户，也就是选定目标市场，以集中优势为其提供服务，扩大市场占有率。

Thank you for the wonderful meal, Mrs. Hanson.（）

A.Oh, I don't think you ate well.  

B.I'm not a good cook in fact. 

C.Be careful next time

D.I'm glad you enjoyed it.