Which expression is equivalent to (4mn/m^-2n^6)^-2 ? Assume m ≠ 0, n ≠ 0

Which expression is equivalent to (4mn/m^-2n^6)^-2 ? Assume m ≠ 0, n ≠ 0

A. n^6/16m^8
B. n^10/16m^6
C. n^10/8m^8
D. 4m^3/n^8