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: Microbiology
Most common cause of non-gonococcal urethritis - 
Select and explain. 
A. Mycoplasma hominis, B. Mycoplasma genitalium, C. Ureoplasma urealyticum, D. Chlamydia trachomatis
D: Chlamydia trachomatis
Answer: D: Chlamydia trachomatis 
Explanation: Ans. is 'd' i.e., Chlamydia trachomatis urethritisGonococcal Nongonococcal Neisseria gonorrhea Chlamydia Trachomatis (most common) Ureoplasmaurealyticum Mycoplasmagenitalium Bacterioides Haemophilus species Candida albicans T.vaginalis