Select the statement that accurately lists all the conditions required for a radical to be considered fully simplified (assuming principal roots and nonnegative variables).

The radicand has no factor with exponent ≥ the index, the radicand is not a fraction, and no radicals remain in denominators.

All factors inside the radical are prime, the index is prime, and the value is written as a decimal when possible.

The radicand is an integer, variables have integer exponents, and radicals appear only in numerators.

The radicand is factored into primes, and the radical index equals the greatest exponent in the radicand.