A particle is released from height `` S `` from the surface of the Earth. At a certain height its kinetic energy is three times its potential energy. The height from the surface of earth and the speed of the particle at that instant are respectively :
(A) `` \frac{ S }{4}, \frac{3 gS }{2} ``
(B) `` \frac{ S }{4}, \frac{\sqrt{3 gS }}{2} ``
(C) `` \frac{ S }{2}, \frac{\sqrt{3 gS }}{2} ``
(D) `` \frac{ S }{4}, \sqrt{\frac{3 gS }{2}} ``