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': 'The longest transit time in GIT is seen in \nSelect and explain. \nA. Stomach, B. Jejunum, C. Colon, D. Ileum', 'role': 'user'}, {'content': 'Answer: C \nExplanation: The longest transit time is seen in the colon. Average Transmit Time Segment Transit time Esophagus 2-3 seconds Stomach 2-5 hours Small intestine 3-6 hours Caecum 4 hours First third of colon 6 hours Second third of colon 9 hours Sigmoid colon 12 hours Ref: Ganong&;s Review of medical physiology 26th edition pgno: 493-494', 'role': 'assistant'}]