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
Reversible change in which one differentiated cell type is replaced another type differentiated cell type 
Select and explain. 
A. Metaplasia, B. Atropy, C. Hypertrophy, D. Hyperplasia
A: Metaplasia
Answer: A: Metaplasia 
Explanation: None