— Must I return the book by the end of next month? 

—           . You can keep it as long as you like. [ ]

A. No, you mustn't

B. No, you can't

C. Yes, you have to

D. No, you needn't

某女，35岁，下痢月余，泻下粘稠脓血，腹部灼痛，心烦口干，夜间诸症加重，舌降少津，苔腻，中有花剥，脉细数。宜用

A．芍药汤加减
B．黄连阿胶汤合驻车丸加减
C．白头翁汤加味
D．连理汤加减
E．以上皆非