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: Pediatrics
[{'content': 'Lactose content of breast milk per 100 ml is – \nSelect and explain. \nA. 3.5 gm, B. 4.5 gm, C. 6 gm, D. 7 gm', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]