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
The important feature of psoriasis is – 
Select and explain. 
A. Crusting, B. Scaling, C. Oozing, D. Erythema
B: Scaling
Answer: B: Scaling 
Explanation: Psoriasis is a papulosquamous disorder characterized by papule and scales.