This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
Commonest complication of chronic gastric ulcer is which of the following? 
Select and explain. 
A. Adenocarcinoma, B. Perforation, C. Lymphoma, D. Haematenesis
D: Haematenesis
Answer: D: Haematenesis 
Explanation: GI bleed is the commonest complication of acute or chronic gastric ulcer. Outlet obstruction is the least commonest complication.