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: Medicine
A patient has multiple necrotic ulcers over glans penis with tender inguinal lymphadenopathy. The likely diagnosis is - 
Select and explain. 
A. Haemophilous ducreyi, B. Chlamydia trachomatis, C. Herpes simplex, D. Candida albicans
A: Haemophilous ducreyi
Answer: A: Haemophilous ducreyi 
Explanation: None