Simplify
-Subtract $\left( 12 a ^ { 2 } b - 9 a b \right)$

Multiple Choice

Simplify.
-Subtract ( $\left( 12 a ^ { 2 } b - 9 a b \right)$ from ( $\left( 10 a ^ { 2 } b - 13 a b \right)$

A) $- 2 a ^ { 2 } b - 4 a b$
B) $- 2 a ^ { 2 } b - 22 a b$
C) $22 a ^ { 2 } b - 22 a b$
D) $22 a ^ { 2 } b - 4 a b$