Answer: ''The "winter dreams" symbolize his hopes of success, which vary and change.''
Explanation:
Connections and summarizing are the correct words.
I do not think it was a dream because he already woke up from troubled dreams. "One morning, when Gregor Samsa woke from troubled dreams, he found himself transformed in his bed into a horrible vermin." "What’s happened to me?” he thought. It wasn’t a dream."
The answer is a because a summary is a shorter version of the reading