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
Examples of metaplasia are the following except? 
Select and explain. 
A. Breast enlargement at pubey, B. Barrets esophagus, C. Myositis Ossificans, D. Respiratory tract in chronic smokers
A: Breast enlargement at pubey
Answer: A: Breast enlargement at pubey 
Explanation: Ans. is 'a' i.e., Breast enlargement at pubey