Observe the given figure carefully and choose the incorrect statement(s). 1. Large volume of acid should be added to a small volume of water slowly. 2. The figure represents the process of concentrating dilute\[{{H}_{2}}S{{O}_{4}}\]. 3. The process involves release of a large amount of heat. 4. Water should not be stirred.

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