This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Blistering disorders, Subject name: Dental
"Target lesions" are characteristically seen in? 
Select and explain. 
A. Pemphigus vulgaris, B. Psoriasis, C. Uicaria pigmentosa, D. Erythema multiforme
D: Erythema multiforme
Answer: D: Erythema multiforme 
Explanation: Iris or target lesions = Erythema multiformie Bulla spread sign and Nikolsky's sign = Pemphigus vulgaris. Auspitz sign = Plaque Psoriasis. Darrier's sign = Uicaria pigmentosa. White dermographism = Atopic dermatitis. Dimple sign = Dermatofibroma Target lesions - Central erythema surrounded by area of clearing and another rim of erythema