How do the first three lines help develop the poem?
A.
they describe the tone of the poem.
B.
they introduce the main subject.
C.
they explain the conflict of the poem.
D.
they introduce the theme.

I think that it is about the singer so maybe the B is correct.

Explanation: Because the singer is subject and from the first three sentence we can know about the singer who is the main subject.

im not sure about this one