Final answer:
Romeo's statement "ay, so I fear, the more is my unrest" reveals that his restlessness and internal turmoil are increasing, which matches option b, indicating that he becomes more restless.
Step-by-step explanation:
When Romeo says, "ay, so I fear, the more is my unrest," he is expressing an increase in his internal turmoil and restlessness. This line reflects the emotional turmoil that is building up in Romeo as part of the rising action in Shakespeare's Romeo and Juliet. It is clear that each new obstacle that Romeo encounters only serves to heighten his feelings of unease and concern about the situations unfolding around him.
The correct option that reflects the change Romeo reveals in the quote is b. Romeo becomes more restless. This answer indicates that Romeo's state of mind is growing more troubled, which contributes to the overall tension of the play, particularly in the rising action leading up to the climactic and tragic events at the end.
Thus, to provide correct option in final answer, we identify option b as the one that best captures Romeo's emotional state upon saying the line in question.