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 small intestine is: \nSelect and explain. \nA. 4 metres, B. 6 metres, C. 9 metres, D. 10 metres', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. B i.e. 6 metresSmall intestine dimensionsThe average length of the small intestine in an adult human male is 6.9 m (22 feet 6 inches), and in the adult female 71 m (23 feet 4 inches).It can vary greatly, from as sho as 4.6 m (15 feet) to as long as 9.8 m (32 feet).It is approximately 2.5-3 cm in diameter.', 'role': 'assistant'}]