维生素D缺乏性手足搐搦症的病因，正确的是（）

A.血钙迅速转移至骨骼

B.血浆蛋白浓度降低

C.骨钙不能游离入血

D.血磷增加

E.血中钙离子降低

But she had to ___ the company and ____a man in order to get a job.

A．lie to; pretended to be

B．lie; pretended to be

C．lie to; pretended being

D．lie; pretended as