Divide Using Long Division $\left( 15 x ^ { 2 } - 61 x + 56 \right) \div ( - 5 x + 7 )$

Multiple Choice

Divide using long division.
- $\left( 15 x ^ { 2 } - 61 x + 56 \right) \div ( - 5 x + 7 )$

A) $- 3 x + 8$
B) $15 x + 8$
C) $x + 8$
D) $8 x + 1$ 8x