Find a Polar Equation of the Conic with Its Focus $\quad$

Multiple Choice

Find a polar equation of the conic with its focus at the pole.
Conics $\quad$$\quad$ Eccentricity $\quad$$\quad$ Directrix
Ellipse $\quad\quad\quad e = \frac { 6 } { 5 } \quad\quad\quad x = -3$

A) $r = \frac { 15 } { 5 - 6 \sin \theta }$
B) $r = \frac { 15 } { 5 - 6 \cos \theta }$
C) $r = \frac { 15 } { 5 + 6 \cos \theta }$
D) $r = \frac { 15 } { 5 + 6 \sin \theta }$
E) $r = \frac { - 15 } { 5 - 6 \cos \theta }$