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': 'Migrating motor complexes \nSelect and explain. \nA. Occur upon arrival of food in the stomach, B. Begin in the lower pa of the small intestine, C. Are initiated by pacemaker cells in the small intestine, D. Occur at a rate of 5 cms per minute from the stomach', 'role': 'user'}, {'content': "Answer: D \nExplanation: MMC's are seen during fasting, they begin at the stomach and extend up to distal ileum Ref: Ganong 25th ed/page 497", 'role': 'assistant'}]