Answer:
Swift uses irony when he says the person with whom he discussed his plan is “very worthy” and “a true lover of this country."
Step-by-step explanation:
Because Swift is discussing a person who is proposing the slaughter of young women for sport, it is ironic that he describes this person as "very worthy" because the person's lack of morality does not characterize them as very honorable, and it contrasts Swift's high opinion of the person.