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: Ophthalmology
[{'content': 'Which of the following drugs is contraindicated in a patient with history of sulfa allergy presenting with an acute attack of angle closure glaucoma \nSelect and explain. \nA. Glycerol, B. Acetazolamide, C. Mannitol, D. Latanoprost', 'role': 'user'}, {'content': 'Answer: B \nExplanation: B i.e. Acetazolamide', 'role': 'assistant'}]