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
Tense itching bulla is seen in ? 
Select and explain. 
A. Bullous pemphigoid, B. Dermatitis herpetiformis, C. Pemphigous vulgaris, D. Erythema multiforme
A: Bullous pemphigoid
Answer: A: Bullous pemphigoid 
Explanation: Ans. is 'a' i.e., Bullous pemphigoid