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: Social & Preventive Medicine
One-third of the Rajya Sabha member's retire every? 
Select and explain. 
A. Three years, B. Four years, C. Two years, D. One year
C: Two years
Answer: C: Two years 
Explanation: Ans. is 'c' i.e., Two years