Answer:
A.
Step by step explanation:
We have been given an radical expression and we are asked to choose the correct option which represent our expression with a rational exponent.
Using exponent rule for negative exponents we can write our expression as:
Using the exponent property we can write our expression as:
Using exponent property we can write our expression as:
Therefore, after representing our expression with rational exponent our given expression will be: and option a is the correct choice.