— Did Mary go to the exhibition yesterday?

— Yes, but she _____ at home. [ ]

A. may have stayed

B. must stay

C. should have stayed

D. was staying

某公司破产，其拖欠的债务有：二人的工资、设有抵押的银行债权、未设定抵押的普通债权。根据破产法的规定，对于该公司破产财产，下列选项正确的是（）。

A.应首先偿还工资

B.应先偿还银行债权

C.应当首先偿还未设定抵押的普通债权

D.应不分先后偿还工资和银行债权