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
Features characteristic of leukoplakia include all except 
Select and explain. 
A. Hyperkeratosis, B. Plasma cell infiltration within the dermal papillae, C. Clinically, a paint like patch, D. A moist shiny lesion.
B: Plasma cell infiltration within the dermal papillae
Answer: B: Plasma cell infiltration within the dermal papillae 
Explanation: None