This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Ear, Subject name: ENT
[{'content': 'Bullous myringitis is caused by? \nSelect and explain. \nA. Pseudomonas, B. Mycoplasma, C. Pneumococcus, D. Candida', 'role': 'user'}, {'content': 'Answer: B \nExplanation: It is a painful condition characterised by the formation of hemorrhagic blebs on the tympanic membrane and deep meatus. It is probably caused by a virus or Mycoplasma pneumonia. ( Ref: Textbook of diseases of ENT, 7TH edition, PL Dhingra, pg no. 58)', 'role': 'assistant'}]