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': 'Vitamin B is absorbed from which pa of intestine \nSelect and explain. \nA. Jejunum, B. Ileum, C. Duodenum, D. Caecum', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Vitamin B12 is predominantly absorbed from ileum Ref: guyton and hall textbook of medical physiology 12 edition', 'role': 'assistant'}]