This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory system, Subject name: Medicine
Phases of ARDS are all except 
Select and explain. 
A. Exudative, B. Transudative, C. Proliferative, D. Fibrotic
B: Transudative
Answer: B: Transudative 
Explanation: The natural history of ARDS is marked by three phases--exudative, proliferative, and fibrotic. The exudative phase is notable for early alveolar edema and neutrophil-rich leukocytic infiltration of the lungs, with subsequent formation of hyaline membranes from diffuse alveolar damage. Within 7 days, a proliferative phase ensues with prominent interstitial inflammation and early fibrotic changes.Approximately 3 weeks after the initial pulmonary injury, most patients recover. However, some patients enter the fibrotic phase, with substantial fibrosis and bullae formation.Ref: Harrison 19e pg: 1736