A particle is projected up from a point at an angle $\theta$ with the horizontal direction. At any time $'t'$, if p is the linear momentum , y is the vertical displacement ,'x' is horizontal displacement , the graph among the following which does not represent the variation of kinetic 'k' of the particle is:

Question

$(a)\; Graph (A) \\(b)\; Graph (B) \\(c)\; Graph (C) \\ (d)\; Graph (D) $