Find a Polar Equation of the Conic with the Given $r = \frac { 2 } { 5 + 2 \cos \theta }$

Multiple Choice

Find a polar equation of the conic with the given characteristics and with one focus at the pole.

A) $r = \frac { 2 } { 5 + 2 \cos \theta }$
B) $r = \frac { 4 } { 5 + 2 \cos \theta }$
C) $r = \frac { 4 } { 5 - 2 \cos \theta }$
D) $r = \frac { 4 } { 5 - 2 \sin \theta }$
E) $r = \frac { 4 } { 5 + 2 \sin \theta }$