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: Medicine
[{'content': "A 25 years old female develops serous otitis media of left ear with cough and occasional hemoptysis and . hematuria and epistaxis for one and half months her. Hemoglobin is 7 gm. B.P. > 170/100, ptoreinuria +++, RA positive (+ve) and ANCA positive (+ve), the likely cause is- \nSelect and explain. \nA. Wegener's granulo matosis, B. Rheumiatoid ahritis, C. Rapidly proliferative glomerulonephritis, D. Good pasteur's syndrome", 'role': 'user'}, {'content': "Answer: A \nExplanation: Answer is A (Wegener's granulomatosis): The patient in question is presenting with the charachteristic triad of Wegener's granutomatosis namely, vasculitis of the upper respiratory tract (serious otitis media and epistaxis), vasculitis of the lower respiratory tract (hemoptysis) and vasculitis of the kidney (proteinuria) Presence of ANCA and Rheumatoid factor fuher suppo the diagnosis of Wegener's granulomatosis which is the single best answer of choice.", 'role': 'assistant'}]