Which of the following are the four types of speech delivery methods?

The four types of speech delivery methods include manuscript, memorized, impromptu, and extemporaneous, making this choice the most accurate representation of the various ways speakers can present their material.

Manuscript delivery involves reading from a written script, which can ensure accuracy but may limit engagement with the audience. Memorized delivery requires the speaker to commit the speech fully to memory, allowing for a more natural presentation but can be risky if the speaker forgets parts of the speech. Impromptu speaking occurs without preparation, requiring the speaker to think on their feet, often in response to unexpected questions or prompts, while extemporaneous delivery strikes a balance, where the speaker prepares and rehearses but speaks using notes or an outline, allowing for flexibility and a conversational style.

Other choices contain terms that do not accurately categorize distinct speech delivery methods. For example, thematic and classified do not represent recognized delivery methods, and scripted is not used distinctly from manuscript in this context. Thus, the selected answer aligns precisely with the standard classifications of speech delivery styles.