—Whose book is this?

—It _______ be Lucy's. Look, here is her name. [ ]

A. may

B. must

C. can't

D. need

下列哪项是错误的组合

A．宫颈炎──粘液脓性白带
B．霉菌性 * * 炎──豆渣样白带
C．子宫颈癌──米汤样白带
D．老年性子宫内膜炎──粘液性白带
E．滴虫性 * * 炎──黄色泡沫状白带