Which sentence uses a pronoun in the possessive case?

Make sure the topic of your persuasive essay is not a.something someone else is writing about b.a fact c.something you have written about before

Once you have finished revising your peer’s essay, continue to demonstrate your understanding of grammar and punctuation by writing an essay containing all of the grammatical concepts outlined above. your essay should be short, just 250 words, and it can be written on any subject. it should contain an example of parallel structure, an example of every type of phrase and clause outlined in this lesson, an example of two independent clauses connected by a semicolon, and an example of a colon. if you are struggling to come up with an idea for an essay, consider writing it about the themes present in one of the texts you have read already.

Which statement best paraphrases these sentences from the text