In response to the question "How are you?" by a client with schizophrenia, which response demonstrates echolalia?

Echolalia is a phenomenon often observed in individuals with certain psychiatric conditions, including schizophrenia. It involves the repetition of phrases or questions that have been heard, often without apparent understanding of their meaning.

In this context, the response "How are you?" directly mirrors the client's question. This repetition exemplifies echolalia, as the individual is reflecting back the exact words spoken to them rather than providing a personal response to the inquiry.

The other responses do not demonstrate echolalia because they involve original content or a specific emotional state rather than mimicking what was previously said. Therefore, the repetition of the question indicates a lack of comprehension or a tendency to echo speech, which is characteristic of echolalic behavior.