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
Regarding Lichen planus all are true except – 
Select and explain. 
A. Hypopigmentation in residual disease, B. Lymphatic infiltration in supradermal layer, C. Itchy, polygonal, purple, papule, D. Skin, Hair & oral mucosa commonly involved
A: Hypopigmentation in residual disease
Answer: A: Hypopigmentation in residual disease 
Explanation: Lesions of Lichen planus heal by leaving behind hyperpigmentation (not hypopigmentation).