Answer:
D) Impromptu speech.
Explanation:
Impromptu speech: The term impromptu speech is defined as the speech that an individual tends to represent in front of other persons without being prepared or in the absence of any preparations. The impromptu speech can be of any type i.e, either in the professional setting related to some project or in any wedding that includes a very casual speech. It simply refers to the speech that is being uttered or composed in the absence of any former preparation.
In the question above, the given statement signifies the impromptu speech.