Under is the prepositional phrase. Remember prepositional phrases show location. Under ins the only word that does that. Good luck my man.
<span>It is true that Jonathan Swift wrote to further the Tory cause. Jonathan Swift was a famous political and satirical writer who wrote Gulliver's Travels, among other things. He was a prominent Tory at one point of his life, which was the conservative political party in the United Kingdom at the time when he was still alive in the 18th century.</span>
The answer is alliteration.
—Evidence—
•-Alliteration definition: the occurrence of the same letter or sound at the beginning of adjacent or closely connected words.
•- In the first part where it says “Today’s class will be silly, simple and singlehandedly...” it mentioned the same letter which is the letter S.