- Actively terminate her life (injection to stop heart). In this case there would be no, or at least very brief, pain, even if she has the capability to feel pain.
- Passively terminate her life (remove feeding tube). Starvation/dehydration is a horrible way to die if one can feel pain, basically torture.
- Keep her alive. A miserable existence if she can feel anything.
They didn't ask her if she'd mind being starved to death. I think it's a stretch to assume that she would've said yes.