$\text { Find a polar equation in the form } r \cos \left( \theta - \theta _ { 0 } \right) = r _ { 0 } \text { for the given line. }$

Multiple Choice

$\text { Find a polar equation in the form } r \cos \left( \theta - \theta _ { 0 } \right) = r _ { 0 } \text { for the given line. }$
- $x - \sqrt { 3 } y = 4$

A) $r \cos \left( \theta - \frac { \pi } { 6 } \right) = 4$
B) $r \cos \left( \theta + \frac { \pi } { 6 } \right) = 2$
C) $r \cos \left( \theta + \frac { \pi } { 3 } \right) = 2$
D) $r \cos \left( \theta + \frac { 2 \pi } { 3 } \right) = 4$