I've found some typos in the question and the options. Here is the correct version:
Excerpt from "A Ghost Story" in Sketches New and Old by Mark Twain
I slept profoundly, but how long I do not know. All at once I found myself awake, and filled with a shuddering expectancy. All was still. All but my own heart—I could hear it beat. Presently the bedclothes began to slip away slowly toward the foot of the bed, as if some one were pulling them!…
How do the words shuddering expectancy affect the meaning of this passage?
1. The narrator awoke excited to discover who might be in his room.
2. The narrator is frustrated that he awoke without knowing why.
3. The narrator awoke cold and worries he'll remain cold all night.
4. The narrator understands that something terrifying is about to happen.
Answer:
The words "shuddering expectancy" affect the meaning of this passage because they convey that:
4. The narrator understands that something terrifying is about to happen.
Explanation:
I slept profoundly, but how long I do not know. All at once I found myself awake, and filled with a shuddering expectancy.
The narrator of the passage can sense something is about to happen. He is filled not with ordinary expectancy - excitement, anticipation -, but with shuddering expectancy. He is afraid, anxious, because he knows there is something terrifying around. The bedclothes slipping away are a confirmation of his prediction. He feels as if someone is pulling them. No wonder he was so nervous, so fearful.