This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Surgery
Most common neoplasm of appendix is 
Select and explain. 
A. Pseudomyxoma peritonei, B. Adenocarcinoma, C. Carcinoid, D. Lymphoma
C: Carcinoid
Answer: C: Carcinoid 
Explanation: Carcinoid tumours arise in argentaffin tissue (Kulchitsky cells of the crypts of Lieberkuhn) and are most common in the vermiform appendix.The tumour can occur in any pa of the appendix, but it is frequently found in the distal third.Ref: Bailey & Love&;s Sho Practice of Surgery