Please answer this test almost done

Agood persuasive essay topic cannot be a. a fact b. debatable c. something somebody else has already written about

Aman lives on the twelfth floor of an apartment building. every morning he takes the elevator down to the lobby and leaves the building. in the evening, he gets into the elevator, and, if there is someone else in the elevator -- or if it was raining that day -- he goes back to his floor directly. otherwise, he goes to the tenth floor and walks up two flights of stairs to his apartment.

The following question asks about one or more selections from your literature textbook. you may use your textbook to answer this question. both “lob’s girl” and “jeremiah’s song” contain flashbacks. in a paragraph, explain what this plot technique adds to the stories. support your answer with one detail from each story.