A Point (A,b) = (R $\theta$ ) Shown in Below Graph in Polar Coordinates Is Given

Multiple Choice

A point (a,b) = (r, $\theta$ ) shown in below graph in polar coordinates is given.Convert the point to rectangular coordinates. $$a = 5 , b = - \pi$$

A) Rectangular coordinates: (5,0)
B) Rectangular coordinates: (5,5)
C) Rectangular coordinates: (-5,5)
D) Rectangular coordinates: (-5,0)
E) Rectangular coordinates: (0,5)