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: Skin
Itchy polygonal violaceous (itchy/prusitic) palpules seen rn 
Select and explain. 
A. Psoriasis, B. Pemphigus, C. Lichen planus, D. Pitriasios rosea
C: Lichen planus
Answer: C: Lichen planus 
Explanation: C. i.e. Lichen planus