In each of the following questions, a word has been used in three different sentences. Choose the option corresponding to the sentence(s) in which the usage of the word is grammatically and contextually correct. RHETORIC ​I. Behind the candidate's highly polished political rhetoric regarding immediate tax reform lay a stark lack of concrete, actionable policy details.
II. The structural integrity of the ancient bridge was severely compromised because the architect used an unstable rhetoric mixture during foundational construction.
III. Classical educators emphasized that mastering the art of rhetoric was essential for any young scholar seeking to persuade public assemblies effectively.