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
Arrange superficial to deep disease : A) Pemphigus vulgarisB) Linear IgAC) Bullous pemphigoidD) Epidermolysis bullosa dystrophica 
Select and explain. 
A. D>A>C>B, B. C>A>D>B, C. A>C>B>D, D. D>A>B>C
C: A>C>B>D
Answer: C: A>C>B>D 
Explanation: Disease Involvement of Layer A) P.Vulgaris Dsg 3 > Dsg 1 Epidermis B) B.Pemphigoid BPAg2 > BPAg1 Upper poion BM C) Linear lgA BPAg2 > BPAg1 Upper BM Salt split Layer (Lamina lucidosis) D) E.B.D(Epidermolysis bullosa Dystrophica) Collagen 7 Lower BM