Consider the following tributaries of the Ganges joining the master river from the north. 1. Gomati 2. Ghagra 3. Gandak 4. Kosi The correct sequence of these rivers when arranged from east to west is

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