Read these lines from the sonnet-ballad":
Left me lamenting. Now I cannot guess
What I can use an empty heart-cup for.
Which is an example of a sound effect Gwendolyn Brooks uses in these lines?
A. The allusions to older ballads in certain words
B. The sadness and anxiety of the speaker
C. The alliteration in the words left and lamenting
D. The comparison of a heart to an empty cup
