Choose the One Alternative That Best Completes the Statement or Answers

Multiple Choice

Choose the one alternative that best completes the statement or answers the question.
Complete the identity.
- $$\frac { \sin ^ { 2 } \theta - 1 } { \sin \theta + 1 } = \text { ? }$$

A) $\sin \theta + 1$
B) $\cos ^ { 2 } \theta$
C) $\sin \theta - 1$
D) $\sin \theta$