Add Simplify, If Possible $\frac{x}{x^{2}-1}+\frac{4 x}{x-x^{2}}$ A) $\frac{-3 x-4}{(x-1)(x+1)}$ B) $\frac{-3 x^{3}+x^{2}-4 x}{\left(x^{2}-1\right)\left(x-x^{2}\right)}$

Multiple Choice

Add. Simplify, if possible.
- $\frac{x}{x^{2}-1}+\frac{4 x}{x-x^{2}}$

A) $\frac{-3 x-4}{(x-1) (x+1) }$
B) $\frac{-3 x^{3}+x^{2}-4 x}{\left(x^{2}-1\right) \left(x-x^{2}\right) }$
C) $\frac{-3 x+4}{(x-1) (x+1) }$
D) $\frac{-3 x^{2}-4 x}{x(x-1) (x+1) }$