A 16-year-old female client is admitted to the psychiatric unit and states that she is depressed and anxious. The client appears frail and is wearing baggy clothes. When it is time for lunch, the client states, "I can't eat, I'm already overweight." What is the best response by the nurse?

A) This response invalidates the client's feelings and may worsen her distress. B) This response may increase the client's anxiety and does not address the underlying issue. C) This response encourages the client to express her feelings and provides an opportunity for therapeutic communication and exploration of her concerns. D) This response may induce fear in the client and does not address her underlying beliefs about weight and eating.