Which canon of rhetoric focuses on adding creativity and polish to a speech?

The correct choice centers around the canon of rhetoric that emphasizes the creative aspect of preparing and refining a speech. In this context, the canon of "Memory" traditionally pertains to the speaker's ability to memorize the speech and recall it effectively, ensuring that delivery appears natural and confident. However, it does not specifically address the element of creativity and polish.

The canon that truly encapsulates the addition of creativity and polish to a speech is more accurately connected to "Delivery" and "Invention." Delivery involves how a speech is presented, including body language, voice modulation, and overall performance, which can add a level of flair and engagement. Invention is the process of coming up with ideas and content, which also entails creativity in crafting arguments and messages. However, it does not focus explicitly on the final presentation aspect.

The misunderstanding likely arises from the overlap between these canons. In summary, while "Memory" plays a significant role in the process of speechmaking, it does not effectively represent the creative and polished refinement aspect as seen in Delivery or Invention. The focus on creativity and polish aligns more closely with the performance and presentation aspects of a speech.