Final answer:
Rhetoric, as defined by Campbell and Burkholder, is the art of effective communication and persuasion, utilized in both academic contexts and everyday communication to influence audiences.
Step-by-step explanation:
According to Campbell and Burkholder, rhetoric can be defined as the art of effective communication and persuasion. It encompasses the use of language to convince or influence others. Through the strategic use of ethos, logos, pathos, and kairos, individuals engage in the craft of persuasion whether in writing or speech. Rhetoric is not limited to the academic realm but is also inherent in everyday interactions such as advertising, political speech, and even social media use. It involves analyzing how language works in various communicative situations to achieve a certain effect or response from an audience. Studies in rhetoric, as articulated by Aristotle and the ancient Greeks, extend to understanding the influence of linguistic structures, symbolic meanings, and logical arguments in all forms of discourse.