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
A patient presented with scarring alopecia, thinned nails, hypopigmented macular lesions over the trunk and oral mucosa. The diagnosis is 
Select and explain. 
A. Psoriasis, B. Leprosy, C. Lichenplanus, D. Pemphigus
C: Lichenplanus
Answer: C: Lichenplanus 
Explanation: C i.e. Lichen Planus