Final answer:
The nurse is incorporating the QSEN competency of teamwork and collaboration by collaborating with other healthcare professionals to develop and implement a comprehensive care plan for the client.
Step-by-step explanation:
The best indication that the nurse is incorporating the Quality and Safety Education for Nursing (QSEN) competency of teamwork and collaboration in the plan of care for a client is A. Collaborating with other healthcare professionals to develop and implement a comprehensive care plan for the client. By working together with other healthcare professionals, the nurse ensures that the care plan is comprehensive and takes into account the expertise and input of all team members. This promotes effective teamwork and collaboration, which are key components of the QSEN competency.