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
[{'content': 'Gastric secretion is stimulated by all of the following except \nSelect and explain. \nA. Vagus, B. Gastrin, C. Secretin, D. Gastric distention', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Secretion a hormone released into the bloodstream by the duodenum (especially in response to acidity) to stimulate secretion by the liver and pancreas Ref: guyton and hall textbook of medical physiology 12 edition page number:414,415,416', 'role': 'assistant'}]