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': 'Antiperistalsis is naturally seen in which pa of the digestive tract? \nSelect and explain. \nA. Stomach, B. Duodenum, C. Colon, D. Antiperistalsis does not occur normally', 'role': 'user'}, {'content': 'Answer: C \nExplanation: - Antiperistalsis occurs as a normal phenomenon from hepatic flexure of colon to the cecum. - Peristalsis followed by antiperistalsis, in this segment, allows complete absorption of water and electrolytes.', 'role': 'assistant'}]