Simplify mn^-4/p^0q^-2.

A. mq^2/n^4.

B. mp/n^4.

C. mn^-4q^2p^0.

D. q^2/mn^4

To simplify the expression, we can check if there are terms that are needed to be added or subtracted. In this case, there are none. The negative power of a variable can be turned into a positive one by placing the variable to the other side of the line. a number or variable raised to zero is equal to 1. In this case, the answer is A. m q^2 / n^4.