For the Given Rectangular Equation, Give Its Equivalent Polar Equation $x - y = 4$

Multiple Choice

For the given rectangular equation, give its equivalent polar equation.
- $x - y = 4$

A) $r = \frac { 4 } { \cos \theta + \sin \theta }$
B) $r = \frac { 4 } { \sin \theta - \cos \theta }$
C) $r = \frac { 4 } { \cos \theta - \sin \theta }$
D) $r = \frac { 1 } { 4 \cos \theta - 4 \sin \theta }$