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
A ventilator pressure relief valve stuck in closed position can result in - 
Select and explain. 
A. Barotrauma, B. Hypoventilation, C. Hypoxia, D. Hyperventilation
A: Barotrauma
Answer: A: Barotrauma 
Explanation: None