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
A man having multiple, painful, indurated, undermined, sloughed edged glans which occurred 5 days after exposures; most likely diagnosis is – 
Select and explain. 
A. Chancroid, B. Primary chancre, C. Herpes genitalis, D. LGV
A: Chancroid
Answer: A: Chancroid 
Explanation: Step 1

Painful ulcer → Chancroid or HSV.

Step 2

In the question, there is no information about step 2 → suppurative lymphadenopathy, U/L or B/L lymphadenopathy, presence or absence of vesicle.
So go for step - 3.

Step 3

Induration (+)nt → Chancroid
Undermined sloughed edges → Chancroid