The correct answer is: Genre affects which story elements the author will likely use to present the theme.
Explanation: Different genres have specific conventions and tropes that shape how a story is told and the elements that are emphasized. For example, in a romance, the theme might be conveyed through character relationships and emotional conflicts, while in a science fiction story, the theme may be explored through technology and its impact on society. The genre influences not only the style and mood of the text but also the techniques and devices the author will employ to express the theme, thus impacting the overall experience and understanding the audience will derive from the work.