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
Which of the following shows deposition of IgA in dennal papilla - 
Select and explain. 
A. Dermatitis herpetiformis, B. IgA papillomatosis of childhood, C. Bullous pemphigoid, D. Gestational herpes
A: Dermatitis herpetiformis
Answer: A: Dermatitis herpetiformis 
Explanation: Dermatitis herpetiformis Immtmopathological appearance of vesicobullous disorders-* Bullous pemphigoid - Linear band of IgG or C3 in epidermal basement membrane* Pemphigus vulgaris Cell surface deposits of IgG on keratinocytes* Pemphigus foliaceous - Cell surface deposits of IgG on keratinocytes* Pemphigoid gesta tionis Linear band of C3 in epidermal basement membrane zone* Dermatitis herpeteformis - Granular deposits of IgA in dermal papillae* Chronic bullous dise ase of childhood - IgA deposits along the dermoepidermal junction* Linear IgA dennatosis of adults Linear deposits of IgA at dermoepidermal junction