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
Pulmonary edema PCWP- 
Select and explain. 
A. >28 mm Hg, B. 15 mm Hg, C. > 10 mm Hg, D. > 8 mmg
A: >28 mm Hg
Answer: A: >28 mm Hg 
Explanation: None