Answer:
The correct answer is
<em>Ah, dear Juliet,
</em>
<em>Why art thou yet so fair? shall I believe
</em>
<em>That unsubstantial death is amorous,
</em>
<em>And that the lean abhorred monster keeps
</em>
<em>Thee here in dark to be his paramour?
</em>
<em>For fear of that, I still will stay with thee;
</em>
<em>And never from this palace of dim night…</em>
Explanation:
A dramatic irony describes the fact where the audience has more information or knows more about a subject than some character in the play.
In this excerpt, the irony is that Romeo, seeing Juliet, believes she is dead. He never suspects that she is asleep, even seeing her "perfection".
We as an audience know it, but Romeo doesn't. So he decides to take his life to join Juliet in eternity.
This is an example of Dramatic Irony.