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: Unknown
[{'content': 'Vaginal PH in the newborn is - \nSelect and explain. \nA. 7, B. 8, C. 6, D. 4', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans- C 6', 'role': 'assistant'}]