Column-I shown position vector as function of  time for a particle. Match the  characteristic of the motion with their description in column-II

	COLUMN-I		COLUMN-II
a	A particle has its position as a function of  time given by  $\overrightarrow{r}\left(t\right)={\overrightarrow{r}}_0+{\overrightarrow{v}}_{0}t$  where  $\overrightarrow{r_0}$  and  ${\overrightarrow{v}}_0$  are non-zero constants.	p	Angular momentum of the system about the origin is conserved.
b	A particle has its position vector as function of time given by  $\overrightarrow{r}\left(t\right)=v_{0}t\widehat{k}+\left(c_0\cos \omega t\right)\widehat{i}$ $+\left(c_0\sin \omega t\right)\widehat{j}$  where ${\overrightarrow{a}}_0$  and  ${\overrightarrow{v}}_0$  are non-zero constant, (angle between  ${\overrightarrow{v}}_0$ and  ${\overrightarrow{a}}_0$   is $90°<\theta <180°$	q	The particle  may be charged and moving in a uniform magnetic field no other force acts on it.
c	A particle is moving in a plane with its position vector  given by $\overrightarrow{r}\left(t\right)=\left(a_0\sin \omega t\right)\widehat{i}+\left(b_0\cos \omega t\right)\widehat{j}$  where  $a_0,b_0(a_0\ne b_0)$  and  $\omega$  are positive constant.	r	Projection of particle on x or y axis is simple harmonic motion
d	A particle is moving in a plane with Position vector $\overrightarrow{r}\left(t\right)=\left(a_0\cos \omega t\right)\widehat{i}+\left(a_0\sin \omega t\right)j$  where  $a_0$ and  $\omega$  are positive constant	s	Kinetic energy of the particle is constant.
		t	Area swept by position vector of particle in equal time interval is equal.