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: Medicine
Treatment of choice for Zollinger Ellison syndrome (ZES)is- 
Select and explain. 
A. PPI, B. Somatostatin analogues, C. Streptozocin, D. Sucralfate
A: PPI
Answer: A: PPI 
Explanation: <p>Davidson&;s principles and practice of medicine 22nd edition. *In majority of the patients continued therapy with omeprazole or other PPI can be successful in healing ulcers and diarrhoea. </p>