Answer:
it would be a because just think a simple would be something like that
"You're" has been used incorrectly. It should be changed to "your".
<span>D.) Piers Plowman
is the answer</span>
Singular definition. In nouns, pronouns, and verbs, the grammatical form that refers to only one thing. In the following sentence, the singular words are italicized: “The police officer stops anyone who crosses before the light changes.” (from google)