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': 'A man having multiple, painful, indurated, undermined, sloughed edged glans which occurred 5 days after exposures; most likely diagnosis is \nSelect and explain. \nA. Chancroid, B. Primary chancre, C. Herpes genitalisLGV, D. All', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A i.e. Chancroid', 'role': 'assistant'}]