Write Each Expression in Factored Form as an Algebraic Expression $$\frac { \sin ^ { 2 } x - 1 } { 1 + \sin x }$$

Multiple Choice

Write each expression in factored form as an algebraic expression of a single trigonometric function.
- $$\frac { \sin ^ { 2 } x - 1 } { 1 + \sin x }$$

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