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
Granuloma venereum is caused by – 
Select and explain. 
A. Donovania granulomatis, B. Chlamydia, C. Hemophillus ducrey, D. None
A: Donovania granulomatis
Answer: A: Donovania granulomatis 
Explanation: Donovanosis (granuloma inguinale or granuloma venerum) is caused by calymmatobacterium granulomatis.