Find the Exact Value of the Expression $$\frac { \tan 175 ^ { \circ } - \tan 55 ^ { \circ } } { 1 + \tan 175 ^ { \circ } \tan 55 ^ { \circ } }$$

Multiple Choice

Find the exact value of the expression.
- $$\frac { \tan 175 ^ { \circ } - \tan 55 ^ { \circ } } { 1 + \tan 175 ^ { \circ } \tan 55 ^ { \circ } }$$

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