Which line from jonathan swift's "a modest proposal" uses the rhetorical device of irony? options: a. there being a round million of creatures in humane figure throughout this kingdom, whose whole subsistence put into a common stock, would leave them in debt two million of pounds sterling, b. they have since gone through, by the oppression of landlords, the impossibility of paying rent without money or trade, the want of common sustenance, with neither house nor cloaths to cover them from the inclemencies of the weather, c. i have not the least personal interest in endeavouring to promote this necessary work, having no other motive than the publick good of my country, d. i have no children, by which i can propose to get a single penny; the youngest being nine years old, and my wife past child-bearing.