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: Pathology
Most common site of carcinoid in gut is - 
Select and explain. 
A. Esophagus, B. Appendix, C. ileum, D. Rectum
C: ileum
Answer: C: ileum 
Explanation: A majority are found in the gastrointestinal tract, and more than 40% occur in the small intestine CARCINOIDS SITES Midgut terminal ileum and appendix(most common) Hindgut rectum and colon Foregut stomach, duodenum, esophagus Others Bronchus, trachea, gall bladder, Merkel's diveiculum TEXT BOOK ROBBINS BASIC PATHOLOGY NINTH EDITION PAGE.571 IMAGE REF: TEXT BOOK OF ROBBINS BASIC PATHOLOGY NINTH EDITION FIG.14.17 PAGE 572