Based on the definition of appositive, this is a noun or noun phrase that is used to rename the another noun beside it. Basing on the given sentence above, I believe that it does not have an appositive. The nouns are Joe and Tulips, but no other noun that renames either of the two.
Hope this helps bro.
"And, for my sake, stay here with Antony: Do grace to Caesar's corpse, and grace his speech."
Due to the fact that I have not read this book i would not be able to accurately answer this question however, I can offer a suggestion and that would be B.