This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Peptic Ulcer Disease, Subject name: Medicine
[{'content': 'Dumping syndrome is due to all except: \nSelect and explain. \nA. Motilin, B. Small stomach, C. Hypeonic fluid contents in bowel, D. Neurotensin', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Dumping syndrome Signs and symptoms arise from the rapid emptying of hyperosmolar gastric contents into the small intestine, resulting in a fluid shift into the gut lumen with plasma volume contraction and acute intestinal distention. Release of vasoactive GI hormones -vasoactive intestinal polypeptide, neurotensin, motilin play a role in early dumping. Early dumping takes place 15-30 minutes after meals and consists of crampy abdominal discomfo, nausea, diarrhea, belching, tachycardia, palpitations, diaphoresis, lightheadedness, and, rarely, syncope.', 'role': 'assistant'}]