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: Medicine
[{'content': 'Peptide YY is secreted by \nSelect and explain. \nA. Stomach, B. Duodenum, C. Ileum, D. Pancreas', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Peptide YY - ileum\nMotilin - Duodenum and jejunum.', 'role': 'assistant'}]