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: Skin
Painful lymphadenopathy is seen in: 
Select and explain. 
A. Donovanosis, B. Syphilis, C. Chancroid, D. All
C: Chancroid
Answer: C: Chancroid 
Explanation: C i.e. Chancroid