Answer:
The setting helps create a mood in the sense that:
C. The author's use of dark and stormy location, set a dangerous and foreboding mood.
Step-by-step explanation:
Setting can be defined as the "where and when" of a story: the place, the time in history, the social context and so on in which the story develops. Description of the setting can, among other things, help create the mood of the story.
In the line "It was a dark and stormy night, as the captain steered into the crashing waves," the way the author has chosen to describe the setting conveys a sense of danger. It is dark and stormy. The waves are crashing. We can easily imagine an angry ocean and how dangerous it is to be on that ship right now. It must be terrifying, and we would feel the imminence of a tragedy. That is why letter C is the best option for this question.