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: Physiology
A patient suffering from Zollinger- Ellison syndrome would be expected to have: 
Select and explain. 
A. Excessive acid reflux into the esophagus, resulting in esophagitis, B. Excessive secretion of CCK, causing continuous contraction of the gallbladder, C. A gastrin-secreting tumor of the pancreas, causing excessive stomach acid secretion and peptic ulcers, D. Low plasma lipid levels, due to failure of the liver to secrete VLDLs
C: A gastrin-secreting tumor of the pancreas, causing excessive stomach acid secretion and peptic ulcers
Answer: C: A gastrin-secreting tumor of the pancreas, causing excessive stomach acid secretion and peptic ulcers 
Explanation: Ans. C. A gastrin-secreting tumor of the pancreas, causing excessive stomach acid secretion and peptic ulcersExcessive production of gastrin results in acid hypersecretion and peptic ulcer disease. Patients with Zollinger-Ellison syndrome do not suffer from excessive acid reflux, excessive secretion of CCK, failure of the liver to secrete VLDLs, or failure to secrete a bicarbonate-rich pancreatic juice