She is upset today, and I want to do    I can to cheer her up.

A．whichever

B．however

C．whatever

D．whenever

通信导航监视运行保障单位在申请设备投产开放许可证时，地区管理局受理申请后，应当将初步审查意见和申请材料一并上报（）审核。

A.当地政府

B.当地交通局

C.民航局

D.空管局