This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Tumours of skin, Subject name: Dental
Skin surface elevation caused by hyperplasia and projections of the epidermis form an undulating surface under microscopic examination. What is this known as? 
Select and explain. 
A. Saw toothing, B. Papillomatosis, C. Villi, D. Parakeratosis
B: Papillomatosis
Answer: B: Papillomatosis 
Explanation: Papillomatosis of skin Skin surface elevation caused by hyperplasia and enlargement of contiguous dermal papillae. Papillary projections of the epidermis form an undulating surface under microscopic examination.