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': 'The Inguinal region shown below is seen in \nSelect and explain. \nA. Chancroid, B. Lymphogranuloma venerum, C. Syphilis, D. Granuloma inguinale', 'role': 'user'}, {'content': 'Answer: B \nExplanation: The image shows "groove sign" = Enlarged lymph nodes matted together on either side of inguinal ligament.\nThis is seen in Lymphogranuloma venerum.', 'role': 'assistant'}]