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
All of the following about gastrointestinal carcinoid tumours are true, Except 
Select and explain. 
A. Small intestine and appendix account for almost 60% of all gastrointestinal carcinoid, B. Rectum is spared, C. 5 year survival for carcinoid tumors is > 60%, D. Appendical carcinoids are more common in females than males
B: Rectum is spared
Answer: B: Rectum is spared 
Explanation: About 15% rectum is involved in a carcinoid tumour it arises from the submucosa with the overlying intact mucous membrane. Reference SRB 5 the edition page no. 877