1. To solve this problem, you must keep on mind the followinwg information:
You know that, by definition, an irrational number is a number that cannot be expressed as a fraction.
2. Therefore, the correct answer is the option D.
3. To verify the answer you have:
∛16=2.51
As you can see, the result is 2.51 and the decimal number 2.51 cannot be expressed as a fraction.
