$\left(8 m^{2} n-6 m n+4 m n^{2}\right)-\left(4 m^{2} n+4 m n-4 m n^{2}\right)$

Multiple Choice

$\left(8 m^{2} n-6 m n+4 m n^{2}\right) -\left(4 m^{2} n+4 m n-4 m n^{2}\right)$

A) $4 m^{4} n^{2}-10 m^{2} n^{2}+8 m^{2} n^{4}$
B) $4 m^{4} n^{2}-10 m n+8 m^{2} n^{4}$
C) $4 m^{2} n-10 m n+8 m n^{2}$
D) $4 m^{2} n-2$