Well, it tells you that thoughts (which express theme) and emotions (which express mood) are closely connected, so d. theme and mood are closely linked.
Beginning with line 93 in Act 1 Scene 5, Romeo and Juliet exchange kisses. They are talking to each other in the form of a sonnet. The sonnet form emphasizes the fact that they are talking for the first time, and much is to come later.
I would say this is an example of alliteration.
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