This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: DNB 2018, Subject name: Pathology
[{'content': 'Myositis Ossificans is an example for: \nSelect and explain. \nA. Metaplasia, B. Hyperplasia, C. Hyperophy, D. Both hyperophy and hyperplasia', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Connective tissue metaplasia is the formation of cailage, bone, or adipose tissue (mesenchymal tissues) in tissues that normally do not contain these elements. For example, bone formation in muscle, designated myositis ossificans, occasionally occurs after intramuscular hemorrhage. This type of metaplasia is less clearly seen as an adaptive response, and may be a result of cell or tissue injury. Commonest example of connective tissue Metaplasia:Myositis Ossificans. Commonest example of epithelial tissue metaplasia:Smokers lungs Metaplasia: Reversible change (Benign entity). If stress persist: Metaplasia-Dysplasia-Cancer.', 'role': 'assistant'}]