This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Vestibulobullous disorders, Subject name: Dental
Most common pemphigus is- 
Select and explain. 
A. Pemphigus vulgaris, B. Pemphigus vegetans, C. Pemphigus foliaceus, D. Pemphigus erythematosus
A: Pemphigus vulgaris
Answer: A: Pemphigus vulgaris 
Explanation: The several variant of pemphigous are pemphigous vulgaris, P. foliaceus, P. erythematosus, P. vegetans. In this the most common is pemphigous vulgaris. From illustrated synopsis of dermatology and sexually transmitted diseases neena khanna 5th edition page no 78