What best defines an extended tact?

An extended tact is effectively described as a response that not only identifies or labels an object but also provides additional commentary or elaboration about it. This means that the speaker is not just naming the object but is also expressing further information, feelings, or thoughts related to it. For example, saying "That flower is beautiful and smells lovely" goes beyond simple identification; it includes additional descriptors and opinions that reflect a deeper engagement with the subject.

In contrast, a simple labeling of an object focuses only on naming it, which does not encompass the deeper commentary aspect that defines an extended tact. A request for information pertains to seeking further knowledge rather than stating what's known, and an involuntary reaction does not involve purposeful use of language, making it unrelated to the verbal operant concept of a tact.

Thus, the correct understanding of an extended tact showcases the importance of both identification and elaboration in verbal communication.