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
[{'content': 'Lack of differentiation of cell is known as \nSelect and explain. \nA. Anaplasia, B. Hypertrophy, C. Dysplasia, D. Metaplasia', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Anaplasia: Lack of differentiation is called anaplasia.', 'role': 'assistant'}]