Final answer:
Jonathan Swift uses irony in 'A Modest Proposal' when calling his outrageous suggestion 'modest,' challenging conventional expectations to criticize societal issues.
Step-by-step explanation:
When Jonathan Swift suggests that his proposal is modest, he is employing a rhetorical technique known as irony. A Modest Proposal is a satirical work where the narrator soberly proposes that the poor of Ireland could alleviate their financial troubles by selling their children as food to the rich. This shocking suggestion is meant to criticize the heartless attitudes towards the poor and the brutal policies of the time. Swift uses irony to highlight the discrepancy between the term 'modest' and the horrifying content of his proposal, engaging the reader in a deeper consideration of the serious social issues at hand. Furthermore, the use of irony serves to both meet and challenge conventional expectations in a rhetorically effective manner, guiding the audience through a critical examination of the societal context and cultural ideas underlying the narrative.