$\frac{4 \mathrm{x}-1}{\mathrm{x}^{2}+9 \mathrm{x}+8}-\frac{\mathrm{x}-2}{\mathrm{x}^{2}-1}$ A) $\frac{3 x^{2}-11 x+17}{(x+1)(x-1)(x+8)}$ B) $\frac{5 x^{2}+1 x-15}{(x+1)(x-1)(x+8)}$ C) $\frac{5 x-3}{(x+1)(x+8)}$

Multiple Choice

$\frac{4 \mathrm{x}-1}{\mathrm{x}^{2}+9 \mathrm{x}+8}-\frac{\mathrm{x}-2}{\mathrm{x}^{2}-1}$

A) $\frac{3 x^{2}-11 x+17}{(x+1) (x-1) (x+8) }$

B) $\frac{5 x^{2}+1 x-15}{(x+1) (x-1) (x+8) }$

C) $\frac{5 x-3}{(x+1) (x+8) }$

D) $\frac{3 \mathrm{x}+1}{(\mathrm{x}+1) (\mathrm{x}-1) }$