Which type of speech is NOT considered one of the three accepted formal speeches?

The correct answer identifies impromptu speech as not being among the three accepted formal types of speeches. Formal speeches typically fall into structured categories that have distinct purposes: persuasive speeches aim to convince the audience of a particular viewpoint, informative speeches are designed to educate the audience about a specific topic or issue, and entertainment speeches are crafted to amuse or engage the audience in a lighter manner.

Impromptu speech, on the other hand, refers to speaking without prior preparation or rehearsal. This type of speech often occurs spontaneously, such as during an unexpected question-and-answer session or a casual conversation where the speaker must think on their feet. While impromptu speaking is a valuable skill, it does not fit within the framework of the three recognized formal speech types, which all require structured formats and specific objectives.