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
Anaplasia is 
Select and explain. 
A. Lack of functional differentiation, B. Lack of structural differentiation, C. Is a characteristic feature of malignancy, D. All of the above
D: All of the above
Answer: D: All of the above 
Explanation: None