Final answer:
The best approach for the new nurse manager to gain the trust and respect of the nursing staff is to acknowledge the upset nurse's clinical expertise and clearly explain expectations for teamwork and communication.
Step-by-step explanation:
The best approach that can be used by the new nurse manager to gain the trust and respect of the nursing staff on the unit is option d. Acknowledge the clinical expertise of the upset nurse and clearly explain the expectations for teamwork and open, honest communication. By acknowledging the upset nurse's clinical expertise, the new nurse manager can validate their experience and knowledge, which may help build trust. Additionally, clearly explaining the expectations for teamwork and open, honest communication can set a foundation for collaboration and foster a positive work environment.