This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Gastrointestinal System, Subject name: Physiology
[{'content': 'True about MMC (Migrating Motor Complex) is: \nSelect and explain. \nA. Once in 90 minutes, B. Occurs in post-absorptive stage, C. Phase 1 shows irregular contractions, D. Motilin decreases MMC contraction', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Migrating Motor Complex: House keeper of intestine, Clears the debris in post-absorptive phase Once in 90 minutes 3 phases: 1. Phase 1- 70 mins, quiescent phase, only slow waves 2. Phase 2- 10-15 mins, irregular contractions 3. Phase 3- 5-10 mins Motilin: Hormone that strengthens the MMC contraction Erythromycin binds with motilin receptors.', 'role': 'assistant'}]