A body of mass $1 \; kg$ is executing simple harmonic motion. Its displacement $y\;cm$ at $t\;sec$ is given by $y = 6 \sin (100 t + \frac{\pi}{4})$ its maximum kinetic energy is :

Question

( A ) 18 J
( B ) 24 J
( C ) 36 J
( D ) 6 J