Because of the bad weather, my mother ____ and lay in bed. She ______ for a week.

A．has been ill; was ill

B．fell ill; has fallen ill

C．fell ill; has been ill

D．fell ill; is ill

患者，男，36岁，5天前发热、咽疼，应用抗生素治疗无效，颈部浅表淋巴结肿大，咽部充血。扁桃体Ⅱ度肿大，下肢少许瘀斑。白细胞16.6×10⁹/L，原始细胞0.60，血红蛋白80gL，血小板34×10⁹/L。

最可能的诊断是（）

A.特发性血小板减少性紫癜

B.缺铁性贫血

C.再生障碍性贫血

D.溶血性贫血

E.急性白血病