When using the MLA style, position explanatory notes either at the___.

• A. a. top of the page as head notes or at the end of the paper as endnotes
• B. b. bottom of the page as footnotes or at the end of the paper as endnotes
• C. c. top of the page as head notes or at the beginning of the paper as front notes
• D. d. bottom of the page as footnotes or at the beginning of the paper as front notes