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
True about metaplasia is 
Select and explain. 
A. Loss of polarity, B. Nucleus is smaller in size, C. It is a reversible change, D. Immature cells
C: It is a reversible change
Answer: C: It is a reversible change 
Explanation: Answer- C. It is a reversible changeMetaplasia is an adaptive change in which one adult (mature) cell type is replaced by another adult (mature) cell.It is reversible.There is no pleomorphism, and cell polarity as well as cell & nuclear size are not altered.