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: Pathology
[{'content': 'Clue cells are found in: \nSelect and explain. \nA. Bacterial vaginosis, B. Chlamydia trachomatis, C. Neisseria gonorrhoea, D. Trichoomonas', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Bacterial vaginosis', 'role': 'assistant'}]