What characterizes an extemporaneous speech?

An extemporaneous speech is characterized by its reliance on notes or outlines for delivery. This style allows the speaker to have structure and key points at their disposal, while also providing the flexibility to adapt and engage with the audience more dynamically compared to a script. By using notes or an outline, the speaker can maintain a natural conversational tone, making the delivery more accessible and relatable.

This approach contrasts with other speech methods, such as reading verbatim from a manuscript or delivering a speech without any preparation. An extemporaneous speech does not require complete memorization beforehand, which can lead to a more genuine connection with the audience, as the speaker can refer to their notes while still appearing spontaneous and engaged. Thus, the correct option effectively captures the essence of extemporaneous speaking.