A particle of mass m is projected with a velocity u making an angle of \[30{}^\circ \] with the horizontal. The magnitude of\[({{V}_{h}}\times h)\] of the projectile when the particle is at its maximum height h

• A. \[\frac{\sqrt{3}}{2}\frac{{{\text{v}}^{\text{2}}}}{\text{g}}\]                
• B.        zero
• C. \[\frac{{{\text{v}}^{\text{2}}}}{\sqrt{2}\text{g}}\]                   
• D.         \[\frac{\sqrt{3}}{16}\frac{{{\text{v}}^{\text{2}}}}{\text{g}}\]