Which shows the following expression using positive exponents?

\(\frac{xy^{-6} }{x^{-4} y^{2} }\)

A\(\frac{x^4}{y^2x^6y^6}\)
B\(\frac{xx^4}{y^2y^6}\)
C\(\frac{x^4}{y^2xy^6}\)
D\(\frac{x^4y^2}{xy^6}\)

The answer is B. If anyone needs to know.