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: Pathology
Blistering in Bullous pemphigoid is because of antibodies against 
Select and explain. 
A. BPAG2, B. BPAG1, C. Filaggerin, D. Keratin 5
A: BPAG2
Answer: A: BPAG2 
Explanation: None