Which of the following regarding the Rajya Sabha are correct? 1. It is not subject to dissolution. 2. It has a term of six years. 3. One-third of its members retire after every two years. 4. Its members shall not be less than 25 years of age. Select the correct answer using the codes given below:

• A.  1, 2 and 3                    
• B.  2, 3 and 4
• C.  1 and 3           
• D.  2 and 4