Respuesta :
Swift states that he is speaking from “the sincerity in [his] heart.” is the answer
In this excerpt from Jonathan Swift's "A Modest Proposal", the statement that best describes how irony is used in the excerpt is "Swift states that he is speaking from "the sincerity in (his) heart."
Swift is going to state his "modest proposal". He writes about how Ireland is suffering for being under British rule. How impoverished couples have trouble feeding their children. Mothers and children beg on the streets. To avoid this, Swift suggests in a satirical way that women should sell their children to rich English landowners, so they will serve them as meals. He could not seriously write this from the sincerity of his heart, this is ironical.