Changing the sentence structure and how quickly events unfold in a story can affect which literary element

Changing the sentence structure and how quickly events unfold in a story can affect the pace of the text. Pacing is a tool that writers use to control how fast events occur and how they unfold as the story progresses. By changing sentence structure and how quickly events occur, it could affect the rhythm of the story.

So your answer is  C.

The answer is letter a or the first option