Answer:
4

Explanation:
Think of two numbers that will go to 96. The best numbers you can use are 16 and 6. You would need to divide 16 to get 4 on each side in which you can use the number for the outer root of the answer. Because 2 and 3 is the only option goes to 6, it is staying under the root in which you will get 4
as your final answer.