Below you are given six polar equations and plots of four of these curves. Match each plot with the correct equation. (Note: Values along the axes are given in Cartesian coordinates.)

A. $\theta=-\pi/6$
B. $r^2-3r+2=0$
C. $r=\sin(\theta)$
D. $r=-3\cos(\theta)$
E. $r=2(1-\sin(\theta))$
F. $r=1-3\cos(\theta)$

1.
2.
3.
4.