Use a Sum or Difference Identity to Find the Exact $\sin 125 ^ { \circ } \cos 65 ^ { \circ } - \cos 125 ^ { \circ } \sin 65 ^ { \circ }$

Multiple Choice

Use a sum or difference identity to find the exact value.
- $\sin 125 ^ { \circ } \cos 65 ^ { \circ } - \cos 125 ^ { \circ } \sin 65 ^ { \circ }$

A) $\frac { \sqrt { 3 } } { 3 }$
B) $\frac { \sqrt { 3 } } { 2 }$
C) $\frac { 1 } { 2 }$
D) $\frac { 25 } { 12 }$