This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Infections of the genital tract, Subject name: Gynaecology & Obstetrics
[{'content': "Ulceration of the vulva is commonly seen in all except : \nSelect and explain. \nA. Bacterial vaginosis, B. Syphilis, C. Chancroid, D. Behcet's disease", 'role': 'user'}, {'content': 'Answer: A \nExplanation: ULCERS OF THE VULVA STD related idiopathic tuberculosis malignancy systemic syphilis herpes genitalis chancroid granulomainguinale lymphogranuloma venerum Bechet&;s disease aphthous ulcers lipschutz ulcers tubercular SCC Malignant melanoma basal cell carcinoma leukemia choriocarcinoma SLE Chron&;s disease Lichen planus lichen sclerosis sjogren&;s syndrome D.C.DUTTA&;S TEXTBOOK OF GYNAECOLOGY,Pg no:262,6th edition', 'role': 'assistant'}]