Final answer:
The writing that primarily utilizes rhetoric to appeal to the emotions of the audience is C. A piece of poetry expressing deep emotional experiences.
Step-by-step explanation:
The writing that primarily utilizes rhetoric to appeal to the emotions of the audience is C. A piece of poetry expressing deep emotional experiences. Poetry often relies on the use of vivid language, imagery, and personal tone to evoke emotions in the readers. Through the use of metaphors, similes, and other rhetorical devices, poets aim to create a strong emotional impact on their audience.
In contrast, option A, a scientific article, primarily focuses on presenting factual information and logical analysis of experimental results. Option B, a political speech, aims to persuade voters through logical arguments and appeals to their sense of rationality. Option D, an instructional manual, provides step-by-step guidance on a technical task and does not typically seek to evoke emotions in the readers.