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 40 year old male patient has a large, foul smelling  ulcer with bright red granulation tissue over the glans penis. There was no lymphadenopathy. The most likely diagnosis is: 
Select and explain. 
A. Syphilis, B. Chancroid, C. LGV, D. Granuloma inguinale
D: Granuloma inguinale
Answer: D: Granuloma inguinale 
Explanation: Ulcer with red granulation tissue (beafy red) and absence of lymph nodes suggests the diagnosis of granuloma inguinale or Donovanosis.