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: Dental
Actinic keratosis is associated with – 
Select and explain. 
A. Basal cell carcinoma, B. Squamous cell carcinoma, C. Malignant melanoma, D. Epithelial cell carcinoma
B: Squamous cell carcinoma
Answer: B: Squamous cell carcinoma 
Explanation: Acnitic keratosis may progress to invasive squamous cell carcinoma.