― Which clothes store is ________, Bill's or Jason's? 　　　　

― Bill's. But Green's is the ________ in the town. 　　[ ]

A. cheaper; cheapest　　 　

B. cheapest; cheapest　　　　 　　

C. cheapest; cheaper

D. cheaper; cheaper

肾脏皮质内的肾小叶由中间的（）和两侧的（）组成。