This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pharmacology
Mycoplasma organisms may also cause disease in non pulmonary sites. Which of the following is the most commonly affected non-pulmonary site? (NOT RELATED) 
Select and explain. 
A. Meningitis, B. Prosthetic hea valve, C. Septic ahritis, D. Urethritis
D: Urethritis
Answer: D: Urethritis 
Explanation: .