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': 'Gonococcus resistant structure is \nSelect and explain. \nA. Urethra, B. Testis, C. Fallopian Tube, D. Ampulla of cervix', 'role': 'user'}, {'content': 'Answer: B \nExplanation: B i.e. Testis', 'role': 'assistant'}]