$(15$ points$)$ The point

$(r,)=(4,\frac{2}{3}),$

in polar coordinates corresponds, in Cartesian coordinates, to

$(x,y)=(-2,2\sqrt[\phantom{2}]{2})$

$(x,y)=(-1,2\sqrt[\phantom{2}]{2})$

$(x,y)=(-3,2\sqrt[\phantom{2}]{3})$

$(x,y)=(-3,2\frac{\sqrt[\phantom{2}]{3}}{3})$

None of the above