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
Disease of dermoepidermal junction is: 
Select and explain. 
A. Staphylococcal scalded skin syndrome, B. Pemphigus vulgaris, C. Bullous pemphigoid, D. Atopic dermatitis
C: Bullous pemphigoid
Answer: C: Bullous pemphigoid 
Explanation: BPAg 1 and 2 involved in Bullous pemphigoid are present in dermoepidermal junction. Diseases of DEJ: Bullous Pemphigoid Dermatitis Herpetiformis Linear IgA disease Epidermolysis bullosa dystrophica.