Bullous pemphigoid is characterized by

Bullous pemphigoid is characterized by non-acantholytic blisters on trunk and limbs.It is characterized by a negative Nikolsky's sign, so B is incorrect.Blisters of bullous pemphigoid are tense and not at all easily ruptured, so C is incorrect.Typical tense blisters of bullous pemphigoid come on red/ uicarial base in the elderly population