SAT English Practice Question

The author's description of the environment in this passage is important for setting the tone of the piece. Although the narrator’s main purpose is to describe the setting and the people there, the passage emphasizes the sense of mystery and danger that pervades the environment. What is the most likely reason why the author uses the word "uncertain"?

1. A.emphasize the narrator’s feelings of anxiety and fear.
2. B.create a sense of mystery and suspense.
3. C.describe the narrator’s lack of knowledge about the environment.
4. D.suggest that the environment is constantly changing.