Which of the following are duties of the Inter-State Council created under Article 263 of the Constitution of India? 1. Inquiring into and advising upon disputes which may have arisen between/among States. 2. Investigating and discussing subjects in which some or all of the States, or the Union and one or more of the States have a common interest. 3. Making recommendations upon any such subject for the better coordination of policy and action with respect to that subject. 4. Ensuring that officers belonging to All-India Services posted in various States are not punished by the judiciary for acts of omission. Choose the correct answer from the codes given below:

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