In a Team Meeting a Nurse Says,"I'm Concerned About Whether

In a team meeting a nurse says,"I'm concerned about whether we are behaving ethically in using restraint to prevent one patient from engaging in self-mutilating behavior while the care plan for another self-mutilating patient calls for one-on-one supervision." Which ethical principle most clearly applies to this situation?

A) Beneficence
B) Autonomy
C) Fidelity
D) Justice