Divide and Simplify to the Form $a+b i$
- $\frac{-7}{5-7 \mathrm{i}}$

Multiple Choice

Divide and simplify to the form $a+b i$ .
- $\frac{-7}{5-7 \mathrm{i}}$

A) $\frac{35}{24}-\frac{49}{24} \mathrm{i}$
B) $-\frac{35}{74}+\frac{49}{74} \mathrm{i}$
C) $\frac{35}{24}+\frac{49}{24} \mathrm{i}$
D) $-\frac{35}{74}-\frac{49}{74} \mathrm{i}$