Use a Sum or Difference Identity to Find the Exact $\tan 75 ^ { \circ }$

Multiple Choice

Use a sum or difference identity to find the exact value.
- $\tan 75 ^ { \circ }$

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