A nurse is caring for a client who has delusional behavior. The client states, "I can't go to group today. I am expecting a high level official to visit me!" Which of the following responses should the nurse make?

A. Acknowledge the client’s delusion while gently redirecting them to the necessary activity (group therapy). This approach maintains engagement without directly confronting the delusion. B. Ignoring the delusion and focusing only on group therapy may cause the client to feel unheard or dismissed. C. Dismissing the delusion is not therapeutic and could undermine trust. D. Asking "why" could challenge the delusion, leading to defensiveness rather than productive conversation.