Final answer:
Milieu therapy involves creating a therapeutic environment for patients with impaired cognition.
Step-by-step explanation:
The correct answer is B) Milieu therapy. Milieu therapy involves creating a therapeutic environment that supports and promotes the well-being of patients with impaired cognition. This includes providing a safe environment, planning activities to stimulate thinking, and involving patients and staff in unit meetings. It is a holistic approach that takes into account the physical, social, and emotional aspects of care.