Find the Exact Value of the Expression Using the Provided $\cos 165 ^ { \circ }$

Multiple Choice

Find the exact value of the expression using the provided information.
- $\cos 165 ^ { \circ }$

A) $\frac { 1 } { 2 } \sqrt { 2 + \sqrt { 3 } }$
B) $\frac { 1 } { 2 } \sqrt { 2 - \sqrt { 3 } }$
C) $- \frac { 1 } { 2 } \sqrt { 2 - \sqrt { 3 } }$
D) $- \frac { 1 } { 2 } \sqrt { 2 + \sqrt { 3 } }$