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.
- $\sin 31 ^ { \circ } \cos 28 ^ { \circ } - \cos 31 ^ { \circ } \sin 28 ^ { \circ }$

A) $\sin 3 ^ { \circ }$
B) $\cos 59 ^ { \circ }$
C) $\sin 59 ^ { \circ }$
D) $\cos 3 ^ { \circ }$