A ball is projected upwards from a height \[h\] above the surface of the earth with velocity \[v\]. The time at which the ball strikes the ground is

• A.             \[\frac{v}{g}+\frac{2hg}{\sqrt{2}}\]
• B.               \[\frac{v}{g}\left[ 1-\sqrt{1+\frac{2h}{g}} \right]\]
• C.             \[\frac{v}{g}\left[ 1+\sqrt{1+\frac{2gh}{{{v}^{2}}}} \right]\]     
• D.             \[\frac{v}{g}\left[ 1+\sqrt{{{v}^{2}}+\frac{2g}{h}} \right]\]