Find the Exact Value of the Expression $$\cos \theta = - \frac { \sqrt { 3 } } { 2 }$$

Multiple Choice

Find the exact value of the expression.
- $$\cos \theta = - \frac { \sqrt { 3 } } { 2 }$$

A) $210 ^ { \circ }$ and $330 ^ { \circ }$
B) $150 ^ { \circ }$ and $210 ^ { \circ }$
C) $60 ^ { \circ }$ and $120 ^ { \circ }$
D) $60 ^ { \circ }$ and $300 ^ { \circ }$