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: Physiology
[{'content': 'Secretion of bile occurs into: \nSelect and explain. \nA. Jejunum, B. Duodenum, C. Ileum, D. Colon', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Bile is secreted continually by the liver cells, but most of it is normally stored in the gallbladder, until it is needed in\xa0the\xa0duodenum.\xa0\xa0\nReference: GUYTON AND HALL TEXTBOOK OF MEDICAL PHYSIOLOGY,THIRTEENTH EDITION page 829', 'role': 'assistant'}]