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: Pathology
Cloudy swelling is: 
Select and explain. 
A. Irreversible, B. Reversible, C. Physiological and never pathological, D. Late manifestation of cell injury
B: Reversible
Answer: B: Reversible 
Explanation: Reversible