This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Autoimmune skin disorders, 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: Fixed drug eruption manifests as skin lesions at fixed sites following drug intake. Page no.294. Reference IADVL's concise textbook of dermatology", 'role': 'assistant'}]