Mrs. Schmidtt found a workbook at a local teacher supply store that has worksheets that she wants her students to complete as part of her math lessons. Because she doesn't want to buy a class set of this workbook she buys one and makes a class set of workbooks on the copy machine at work. Which legal or ethical requirement is she violating? A. Fair use. B. Publisher dividends. C. Income Rights of Authors. D. Texas Administrative Code