________, I think, and you will settle the problem.[ ]

A. So long as you keep up your spirits

B. If you make your effort

C. Making great efforts

D. A bit more effort

患儿男，13岁，因“水肿、茶色尿4周，尿量进行性减少3d，无尿1d”来诊。查体：BP150/100mmHg。实验室检查：Hb108g/L；尿沉渣RBC30～40/HP，尿蛋白（+++）；BUN17.8mmol/L，SCr490μmol/L。

最可能的诊断是（）

A.急性肾炎伴肾衰竭

B.急进性肾炎

C.肾炎性肾病综合征

D.迁延性肾炎

E.慢性肾炎