<prompt> All of the following is NOT a feature of an exudate?Serum : Pleural Albumin ratio 1.2mgdlPleural fliud cholesterol 55Fluid : Serum Protein ratio 0.5Fluid : Serum LDH ratio 0.6  <response>: Answer- A. Serum : Pleural Albumin ratio 1.2mgdlPleural fliud cholesterol 55Fluid : Serum Protein ratio 0.5Fluid : Serum LDH ratio 0.6 