As a single mother of three children, she has very little time   ________    she can spare to develop her own interest.

A．when

B．that

C．which

D．what

病历摘要：患者男，25岁，咽痛发热1周后，躯体四肢出现广泛散在红色丘疹、斑丘疹，表面有银白色鳞屑，刮去鳞屑呈半透明薄膜，再刮去薄膜出现小血点，自觉瘙痒，其母亲有同类历史。

此患者首先应考虑的诊断是（）

A.病毒疹

B.玫瑰糠疹

C.寻常型银屑病

D.毛发红糠疹

E.白色糠疹