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: Anatomy
The commonest cause of death in ARDS is: 
Select and explain. 
A. Hypoxemia, B. Hypotension, C. Non pulmonary organ failure, D. Respiratory failure
C: Non pulmonary organ failure
Answer: C: Non pulmonary organ failure 
Explanation: In ARDS, most of the deaths are attributable to sepsis or multiorgan failure and in some cases direct lung injury.(ref Robbins 9th/674)