Using a Sum or Difference Identity, Write the Following as an Expression

Multiple Choice

Using a sum or difference identity, write the following as an expression involving functions of x.
- $$1 - \cos ^ { 2 } \theta$$

A) $\sin \theta$
B) $- \sin ^ { 2 } \theta$
C) $\sin ^ { 2 } \theta$
D) $\tan ^ { 2 } \theta$