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: Gynaecology & Obstetrics
[{'content': 'Vaginal PH typically is \nSelect and explain. \nA. 3 to 3.5, B. 3.5 to 4, C. 4 to 4.5, D. 4.5 to 5', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Vaginal pH typically ranges between 4 to 4.5.', 'role': 'assistant'}]