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: Medicine
The triad of DM, gall stones and steatorrhoea is associated with which one of the following tumours? 
Select and explain. 
A. Gastrinomas, B. Somatostatinomas, C. VIPomas, D. Glucagonomas
B: Somatostatinomas
Answer: B: Somatostatinomas 
Explanation: None