Answer: The tone is relatively straightforward. Then, Swift suggests eating infants in paragraph eight. No one in their right mind could think that Swift actually believes that eating infants is the solution to the famine in Ireland. So it's clear by this point that the essay is meant to be satire.
"<span>They arrived from Polynesian islands in the Pacific via boat" is the best option from the list, since Australia is the outermost location on the "string" of these thousands of islands. </span>