Find the Difference $\left( 9 x ^ { 2 } + 4 x - 10 \right) - \left( 4 x + 9 x ^ { 2 } - 10 \right)$

Multiple Choice

Find the difference $\left( 9 x ^ { 2 } + 4 x - 10 \right) - \left( 4 x + 9 x ^ { 2 } - 10 \right)$ .

A) -20
B) 0
C) $8 x - 20$
D) $18 x - 20$
E) $8 x ^ { 2 } + 8 x - 20$