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: Dental
20 year old male lalu develops multiple ulcers over prepuce and glans which are painful along with suppurative lymphadenopathy, 5 days after having sexual intercourse with a sex worker, most probable diseases is – 
Select and explain. 
A. Herpes simplex, B. Molluscum contagiousm, C. Syphilis, D. Chancroid
D: Chancroid
Answer: D: Chancroid 
Explanation: Step 1
Ulcer is painful → Chancroid or HSV.
Step 2
Suppurative lymphadenopathy chancroid (HSV ruled out as there will be non-suppurative lymphadenopathy with associated vesicles).