The graph of f(x) = x³ has been reflected about the y-axis and vertically shifted up 4 units. Which equations is correct for these transformations ?(choose only one)
a. g(x) = -x³-4
b. g(x) = (-x)³ – 4
c. g(x) = -(x +4)³
d. g(x) = (-x)³ + 4​