Simplify by Rationalizing the Denominator $\frac { - 9 } { - 4 + 8 i }$

Multiple Choice

Simplify by rationalizing the denominator. Write your answer in a +bi form.
- $\frac { - 9 } { - 4 + 8 i }$

A) $- \frac { 3 } { 4 } + \frac { 3 } { 2 } \mathrm { i }$
B) $\frac { 9 } { 20 } - \frac { 9 } { 10 } \mathrm { i }$
C) $- \frac { 3 } { 4 } - \frac { 3 } { 2 } \mathrm { i }$
D) $\frac { 9 } { 20 } + \frac { 9 } { 10 } \mathrm { i }$