Four boys are playing a number game. Each of them are writing their favourite number. Who wrote the greatest number? \[\begin{align} & Rahul~\,\,\,\,Ravi~\,\,\,\,Tarun~~Raj \\ & \,\,\,\,\downarrow \,\,\,\,\,\,\,\,\,\,\,\,\,\,\downarrow \,\,\,\,\,\,\,\,\,\,\,\,\,\downarrow \,\,\,\,\,\,\,\,\,\,\,\downarrow \\ & \,\,\,\,\,\,\, \\ \end{align}\]

• A.  Tarun                          
• B.  Ravi                
• C.         Rahul              
• D.         Raj