This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Dental
Mouth lesions are seen in 
Select and explain. 
A. Psoriasis, B. Lichen planus, C. Ichthyosis vulgaris, D. Basal cell carcinoma
B: Lichen planus
Answer: B: Lichen planus 
Explanation: A white lacework pattern on the buccal mucosa in most frequently observed in lichen planus in 30% of the patients ii Psoriasis - common site - elbow, knee, scalp, lower back fingernails iii Basal cell carcinoma - common site is face