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': 'IOC for Bronchiectasis - \nSelect and explain. \nA. HRCT scan, B. Spiral CT, C. Bronchoscopy, D. Pulmonary angiography', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The best test to evaluate the destruction and dilatation of large airways which are filled with pus in Bronchiectasis is HRCT.\nSpiral CT is preferred for pulmonary embolism.\nPulmonary angiography is done for lung sequestration and is gold standard for pulmonary embolism.', 'role': 'assistant'}]