The pie-chart shows the modes of transport taken by students of a school. \[AB\] is a straight line and \[O\] is the centre of the circle. If \[500\] students go to school by bus, how many of them go by scooter?

• A. \[400\]                          
• B.                    \[300\]              
• C.                    \[360\]                          
• D.                    \[180\]