The Polar Equation That Corresponds to the Rectangular Equation $x - y = 0$

Multiple Choice

The polar equation that corresponds to the rectangular equation $x - y = 0$ is

A) $r = \frac { 4 } { 2 \cos \theta + \sin \theta }$
B) $r = \tan \theta \sec \theta$
C) $r = \csc \theta \sec \theta$
D) $r ^ { 2 } = \frac { 4 } { 2 \cos ^ { 2 } \theta - \sin ^ { 2 } \theta }$
E) $\theta = \frac { \pi } { 4 }$