What is the correct radical form? A^1/3 B^2/3

The answer to your question is the letter d)  ∛ab²

Step-by-step explanation:

Data

             a¹/³ b²/³

Process

A fractional exponent is converted into a radical form, to do this change, the numerator will be the exponent of the base and the denominator will be the root of the base.

then

            a¹/³ = ∛a

            b²/³ = ∛b²

but both terms have the same root so let's write them in the same cubic root.

           ∛ab²