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
Change in structure and functions of a tissue is called: 
Select and explain. 
A. Dysplasia, B. Metaplasia, C. Anaplasia, D. Aplasia
B: Metaplasia
Answer: B: Metaplasia 
Explanation: None