30 years old male presents with painful flaccid bullae on right face and oral mucosa without evidence of inflammation or redness; what is the most probable diagnosis?: (A) Pemphigus vulgaris, (B) Pemphigus foliaceous, (C) Bullous pemphoid, (D) Dermatitis herpetiformis
Answer is A. Ans. is 'a' i.e., Pemphigus vulgaris