Which example best illustrates an intraverbal response?

An intraverbal response occurs when an individual responds verbally to another person's statement or question in a manner that is related to the conversation but does not involve echoing or repeating what was said. In this context, the child saying "It’s sunny!" when asked about the weather demonstrates an intraverbal response because the child is providing information based on the prompt and engaging in a social exchange.

This interaction illustrates how language can facilitate communication and express ideas, showing that the child understands the question and can provide a relevant and meaningful answer that is not merely a repetition or a direct response to a request. The other scenarios involve different types of verbal operants, such as requests or echoics, which do not fit the definition of an intraverbal response.