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': 'Diagnostic test for pulmonary embolism: \nSelect and explain. \nA. Ventilation lung scanning., B. Pulmonary lung scanning., C. Pulmonary angiography., D. Die test', 'role': 'user'}, {'content': 'Answer: C \nExplanation: CT scan with intravenous contrast i.e., multidetector CT angiography is the test of choice for diagnosis of pulmonary embolism.', 'role': 'assistant'}]