The answer is competition
Your picture is to blurry
"C. <span>With a lot of daily practice" would be the only option from the list that is a sentence fragment, since there is no subject and it is unclear what exactly is being referred to. </span>
Actually, these two novels could be said to express all of these themes and ideas. However, the authors of these two novels, F. Scott Fitzgerald and Ernest Hemingway, are considered by many critics, scholars, and historians to belong to what is known as "the lost generation" of American writers. Hemingway and Fitzgerald, in fact, have been considered to be the "leaders," in a sense, of the "lost generation" of American writers, especially given their mutual expression of purpose for the post World War I generation in their novels.