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
Which of the following epithelial changes commonly signify precancerous condition: 
Select and explain. 
A. Dyskeratosis, B. Hyperkeratosis, C. Parakeratosis, D. Acanthosis
A: Dyskeratosis
Answer: A: Dyskeratosis 
Explanation: None