Praveen bought \[5\] tins of orange juice each containing \[0.75\ell \] of orange juice. He poured the orange juice into a \[6-\]litre container. How many more tins must Praveen buy to fill up the container with orange juice?

• A. \[30\]                            
• B.                    \[2\]                 
• C.                    \[5\]                             
• D.                    \[3\]