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
All of the following is NOT a feature of an exudate? 
Select and explain. 
A. Serum : Pleural Albumin ratio < 1.2mg/dl, B. Pleural fliud cholesterol > 55, C. Fluid : Serum Protein ratio > 0.5, D. Fluid : Serum LDH ratio > 0.6
A: Serum : Pleural Albumin ratio < 1.2mg/dl
Answer: A: Serum : Pleural Albumin ratio < 1.2mg/dl 
Explanation: Answer- A. Serum : Pleural Albumin ratio < 1.2mg/dlPleural fliud cholesterol > 55Fluid : Serum Protein ratio > 0.5Fluid : Serum LDH ratio > 0.6