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: ENT
A patient presented with flat topped violaceous papules, thinning of nails and onycholysis. What is the microscopic finding observed in this patient? 
Select and explain. 
A. Prominent necrotic cell, B. Suprabasal split, C. Basal cell degeneration, D. Acantholysis
C: Basal cell degeneration
Answer: C: Basal cell degeneration 
Explanation: Ans. c. Basal degeneration