પ્રક્ષિપ્ત પદાર્થની ઊંચાઇ વિરુધ્ધ સમયનો આલ

 Height of the projectile $h=u t-\frac{1}{2} g t^{2}$

which is a parabola. When a projectile is projected at some angle from the horizontal, the projectile attains a maximum height after some time and after that it starts to fall down and finally comes to the ground. So correct graph is option $\mathrm{C}$.