This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Gynaecological oncology, Subject name: Gynaecology & Obstetrics
Which is most commonly implicated in genital (vulval) was : 
Select and explain. 
A. HPV 16, B. HPV 18, C. HPV 31, D. HPV 6
D: HPV 6
Answer: D: HPV 6 
Explanation: Genital was or Condyloma accuminata Caused by HPV 6 & 11 HPV 16,18, 45, 56 : Causes infection and malignant epithelial transformation of cervix, vagina and vulva Ref: D.C.DUTTA'S TEXTBOOK OF GYNAECOLOGY; 6th edition; Pg no:157