The parent function f(x) = log4x has been transformed by reflecting it over the x-axis, stretching it vertically by a factor of two and shifting it up five units. Which function is representative of this transformation?

a. g(x) = log4(2x) + 5
b. g(x) = 2log4(x) - 5
c. g(x) = -2log4(x) + 5
d. g(x) = log4(-2x) - 5