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: Skin
[{'content': 'Multiple necrotic ulcers in prepuce of penis with tender, suppurative inguinal nodes is caused by- \nSelect and explain. \nA. Chalmydia, B. Hemophilus ducreyi, C. Herpes simplex, D. Syphilis', 'role': 'user'}, {'content': 'Answer: B \nExplanation: B i.e. Hemophillus', 'role': 'assistant'}]