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
In Tzanck smear multinucleated cells are seen in – 
Select and explain. 
A. Chicken pox, B. Psoriasis, C. Molluscum contagiosum, D. Pemphigus vulgaris
A: Chicken pox
Answer: A: Chicken pox 
Explanation: Blisters of varicella-zoster (chicken pox) show multinucleated gaint cells on Tzanck smear.