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
A young boy presented with miultiple flaccid bulla and oral mucosal lesion: The most likely finding would be: 
Select and explain. 
A. Granular lgA in reticular dermis, B. IgG in epidermis, C. Linear IgM inderoepidermal junction, D. Linear IgA in dermal papillae
B: IgG in epidermis
Answer: B: IgG in epidermis 
Explanation: IgG in epidermis