The correct answer is 4. In "Racing the Storm,” the author creates suspense through pacing, which is the speed at which the plot develops.
The pace refers to the rhythm with which a situation develops, taking into account the speed of it. In the work in question, pacing has a meaning that plays in turn with the name of the work, since it refers to speed, as well as the word "Racing".
Pacing is the speed at which the plot develops. Authors can slow down or speed up the pace of the story to create suspense and interest. Authors do this through sentence length and word choice. Option 1, the struggle between opposing characters is conflict. Option 3, the atmosphere that the story creates is the mood.