Write the Expression as the Sine, Cosine, or Tangent of an Angle

Multiple Choice

Write the expression as the sine, cosine, or tangent of an angle.
- $$\frac { \tan 46 ^ { \circ } - \tan 27 ^ { \circ } } { 1 + \tan 46 ^ { \circ } \tan 27 ^ { \circ } }$$

A) $\tan 19 ^ { \circ }$
B) $\tan 73 ^ { \circ }$
C) $\tan 72$
D) $\tan 36.5 ^ { \circ }$