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: Dental
[{'content': 'Genital ulcer is seen in A/E – \nSelect and explain. \nA. Granuloma inguinale, B. Syphillis, C. LGV, D. Donovanosis', 'role': 'user'}, {'content': 'Answer: C \nExplanation: In LGV; occasionaly genital lesion is not noticed. Presenting feature is enlargement of inguinal, femoral (or some times external iliac) lymph nodes separated by poupartis ligament (sign of groove).', 'role': 'assistant'}]