This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Sexually Transmitted Infections, Subject name: Dental
[{'content': 'Causative agent of donovanosis is:- \nSelect and explain. \nA. Klebsiella Granulomatis, B. T. pallidum, C. Chlamydia trachomatis, D. L. donovani', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Donovanosis (Granuloma Inguinale And Granuloma Venereum) Donovanosis is a chronic, progressively destructive bacterial infection of the genital region caused by caused by Klebsiella granulomatis. It is an intracellular, gram-negative, pleomorphic, encapsulated (when mature) bacteria. T. pallidum causes Syphilis. Chlamydia trachomatis causes LGV. L. donovani causes Kala Azar Note Nucleic acid amplification test (NAAT) is the gold standard test for diagnosis of Chlamydia', 'role': 'assistant'}]