Use Identities to Find the Indicated Value for Each Angle $\cos x ( \csc x - \sec x ) - \cot x$

Multiple Choice

Use identities to find the indicated value for each angle measure.
- $\cos x ( \csc x - \sec x ) - \cot x$

A) $\cos ^ { 2 } x - \tan ^ { 2 } x$
B) 1
C) 0
D) $- 1$