Find the Exact Value of the Expression $\tan 300 ^ { \circ }$

Multiple Choice

Find the exact value of the expression.
- $\tan 300 ^ { \circ }$

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