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': "A 27 year old sexually active male develops a vesiculobullous lesion on the glans soon after taking tablet paracetamol for fever. The lesion healed with hyperpigmentation. The most likely diagnosis is – \nSelect and explain. \nA. Behcet's syndrome, B. Herpes genitalis, C. Fixed drug eruption, D. Pemphigus vulgaris", 'role': 'user'}, {'content': 'Answer: C \nExplanation: Presentation with a solitary lesion in the genital skin that heals with hyperpigmentation. Soon after ingestion of paracetamol, one of the most commonly implicated agents for FDE, suggests a diagnosis of Fixed Drug Eruption (FDE)', 'role': 'assistant'}]