The answer would be a fragment because to be a sentence, groups of words need to have at least one independent clause.
Answer:
B
Explanation:
I'm assuming the second paragraph is the part where it talks about kids that have joined choir etc. It doesn't ask a question or restate the thesis, but it provides evidence.
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 answer helps. Have a great day!