What is the inverse of this function?
f(x) = 8√x, for x ≥ 0
O A. f¹(x) = 64x², for x ≥ 0
O B. f¹(x) = ², for x ≥ 0
O c. f¹(x) = 8x², for x ≥ 0
O D. f¹(x) = 1/64x², for x ≥ 0