<h2>It was during the Civil War that Barton began the work that lead to the establishment of the American Red Cross.</h2><h2>What change, if any, should be made?</h2><ul><li> a. Change was to is.</li><li> b. Insert a comma after <b><i>Civil War.</i></b></li><li> c. Change lead to led.</li><li> d. Make no change.</li></ul>