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: Anatomy
[{'content': 'Length of large intestine is: \nSelect and explain. \nA. 1.5 metres, B. 3 metres, C. 4.5 metres, D. 6 metres', 'role': 'user'}, {'content': 'Answer: A \nExplanation: 1.5 metres', 'role': 'assistant'}]