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: Dental
A female presents with persistent painful oral lesions, with acantholytic cells. Most likely diagnosis is – 
Select and explain. 
A. Pemphigus vulgaris, B. Dermatitis herpetiformis, C. Epidermolysis bullosa, D. Bullous pemphigoid
A: Pemphigus vulgaris
Answer: A: Pemphigus vulgaris 
Explanation: Painful oral lesion with acantholysis suggests pemphigus vulgaris.