From the text:
<span>"Well, I don't like to spread bad news," said the sheep, "but they're fattening you up because they're going to kill you, that's why."</span>
All sentences are correct except for the last one -- <span>Herman Melville wrote the novel “Moby wingspan.”
The correct sentence should be </span><span>Herman Melville wrote the novel Moby Wingspan. Putting double quotation marks is not necessary.</span>
This is a complex sentence because it has a semicolon, semicolons or things like them show a sentence may be complex
Ok, it's not a metaphor because there's no actual comparison here.
That being said, what do you mean by quote or phrase? Are these the three options you have to choose from?
If so...this is probably a phrase. A quote is well...it's a sentence or sentences that someone else has said. A phrase is just an expression.
Final answer: Phrase
I hope that helps.