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: Pharmacology
Which of the following type of wa is treated by local application of podophyllin? 
Select and explain. 
A. Plantar wa, B. Genital wa, C. Verruca Wa, D. All of the above
B: Genital wa
Answer: B: Genital wa 
Explanation: Treatment of anal condyloma depends on the location and extent of disease. Small was on the perianal skin and distal anal canal may be treated by the topical application of bichloracetic acid or podophyllin. Imiquimod is an immunomodulator that recently was introduced for topical treatment of several viral infections, including anogenital condyloma. Ref: Bullard Dunn K.M., Rothenberger D.A. (2010). Chapter 29. Colon, Rectum, and Anus. In F.C. Brunicardi, D.K. Andersen, T.R. Billiar, D.L. Dunn, J.G. Hunter, J.B. Matthews, R.E. Pollock (Eds), Schwaz's Principles of Surgery, 9e.