She is very dear to us. We have been prepared to do _____   it takes to save her life.[ ]

A. whichever

B. however    

C. whatever    

D. whoever

伤病员住医院（卫生队）期间，必须遵守院（队）规，服从管理。所在单位应当主动了解伤病员的病情以及住院（队）期间的表现，出院时通常派人将其接回。