A client is receiving treatment for delusional behavior. He believes that his neighbor is purposefully poisoning his water system in an attempt to make him sick. Which of the following responses of the nurse is most appropriate?

When a client presents with delusional beliefs, the nurse should avoid arguing with the client and should accept the client's initial need to hold onto the delusions. By asking the client 'Why do you feel like your neighbor is trying to poison you?' the nurse encourages the client to express his beliefs further. This open-ended question allows the client to elaborate on his delusions without feeling judged. It helps build trust between the nurse and the client, which is crucial for therapeutic communication. This approach may eventually lead to the client being more receptive to exploring and addressing his delusions. Choices A, C, and D are incorrect. Choice A may come off as dismissive and does not address the client's underlying beliefs. Choice C is a distraction and does not address the client's concerns. Choice D is confrontational and dismissive of the client's beliefs, which can damage the therapeutic relationship.