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': 'Which of the following conditions is most likely to be associated with a vaginal pH of 4 ? \nSelect and explain. \nA. Atrophic vaginitis, B. Candidal vaginits, C. Trichomonas vaginitis, D. Gardnella vaginitis', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Candidal vaginits', 'role': 'assistant'}]