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
Modified wells criteria is used for initial assessment of patients with suspected 
Select and explain. 
A. Pulmonary embolism, B. Pleural Effusion, C. Cardiac tamponade, D. Myocardial infarction
A: Pulmonary embolism
Answer: A: Pulmonary embolism 
Explanation: Answer- A. Pulmonary embolism