Read the following context and choose the best option to answer the question.
Context: She had been dead when she fell back on the bed and she stayed dead through all the effort to save her , while blood and tissue bubbled out of her and the suction clogged with particles spilling from her lungs . Everyone did what she knew how to do to save her . She could not be saved .
Question: What may be the reason why they continued to work on saving her ?
Options: 
- None of the above choices .
 - Because that was all they could think to do .
 - Because her life was n't worth saving .
 - Because it 's their job .


None of the above choices .