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
Reiter's syndrome is due to - 
Select and explain. 
A. Chlamydia, B. Nisseria, C. Myoplasma, D. Herpes virus
A: Chlamydia
Answer: A: Chlamydia 
Explanation: Ans. is 'a' i.e., Chlamydia . Reiter syndrome is caused by --> Chlamydia trachomatis ureaplasma urelyticum, Salmonella Spp., Shigella spp., Yersinia spp., Campylobactor Spp.