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: Microbiology
Most common genital lesion in HIV patient is ? 
Select and explain. 
A. Chlamydia, B. Herpes, C. Syphilis, D. Candida
B: Herpes
Answer: B: Herpes 
Explanation: Ans. is 'b' i.e., Herpes `Herpes simplex (in the developed world) and chancroid (in Africa) are the most common cause of genital ulceration in HIV infected patients.' - 'An Atlas of differential diagnosis in HIV disease' by Lipman, Gluck and Johnson 1st (1995) p. 30