B. to show how two complete thoughts are related
The denotation of the word is anxious. Romeo intended to swear, to which Juliet protests, affirming that she she feels uneasy about such a hasty decision. Although she loves him, still she considers any vow made without taking due time would be too harsh, too sudden and, like a lightning, come and soon be gone. The reason for her anxiety.
Answer is A.
C, both of these.
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