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
Basal cell degeneration characteristically seen in: 
Select and explain. 
A. Lichen planus, B. Psoriasis, C. Pemphigus, D. DLE
A: Lichen planus
Answer: A: Lichen planus 
Explanation: A i.e. Lichen planus