Which Feature Does Not Characterize the Proximal Convoluted Tubule

Which feature does not characterize the proximal convoluted tubule?

A) It is responsible for most of the reabsorption of water and solutes from the filtrate.
B) It has cells with numerous microvilli on their apical surfaces, indicating it is a site for reabsorption.
C) It performs isosmotic reabsorption.
D) It has cells with numerous mitochondria, indicating they are metabolically very active.
E) Because of its activities, fluid entering the loop of Henle has the same osmolarity and composition as blood plasma.