It is possible to narrow the topic of your paper too much.

Which is an example of perfect iambic pentameter? a. "i have been worth the whistle." b. "whose reverence even the head-lugg'd bear would lick," c. "a man, a prince, by him so benefited! " d. "ere they have done their mischief. where's they drum? " e. "marry, your manhood, mew! "