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: Skin
Multinucleate giant cells are seen in Tzank smear in ? 
Select and explain. 
A. Herpesgenitalis, B. Bullous pemphigoid, C. Toxic epidermal necolysis, D. Pemphigus
A: Herpesgenitalis
Answer: A: Herpesgenitalis 
Explanation: Ans. is 'a' i.e., Herpes genitalis