Answer:
Firstly, this question makes no sense.
A, but also, would make the most sense.
Not only has Brooke finished recording her latest song called "Pieces," but also the song to her.
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Although it is not making complete sense to me, it makes the most sense compared to the others.
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Not only has Brooke finished recording her latest song called "Pieces," yet the song to her.
Not only has Brooke finished recording her latest song called "Pieces," nor the song to her.
Not only has Brooke finished recording her latest song called "Pieces," however the song to her.
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All of these other choices wouldn't make complete sense even given the full sentence that seems to be missing.
Also, the use of not only means there's a high chance that but also will be used. You've probably heard someone say "Not only, but also" for teaching things like this, remembering this helps. I could possibly be wrong though due to me either misunderstanding the question or the question being incomplete.
