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': '. Gartners cyst can be differentiated from cystocele by all except: \nSelect and explain. \nA. Not reducible, B. No impulse on coughing, C. Presence of rugosities of overlying vaginal mucosa, D. None of above', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]