Evaluate the Tangent of the Angle Without Using a Calculator $- 120 ^ { \circ }$

Multiple Choice

Evaluate the tangent of the angle without using a calculator.
$- 120 ^ { \circ }$

A) $\sqrt { 3 }$
B) $- \frac { \sqrt { 3 } } { 3 }$
C) $\frac { \sqrt { 3 } } { 3 }$
D) $\frac { 1 } { 2 }$
E) 0