( A ) Velocity is perpendicular to $\overrightarrow{r}$ and acceleration is directed away from the origin.

( B ) Velocity is perpendicular to $\overrightarrow{r}$ and acceleration is directed towards the origin

( C ) Velocity and acceleration both are parallel to $\overrightarrow{r}$

( D ) Velocity and acceleration both are perpendicular to $\overrightarrow{r}$