help me get the correct answer and I’ll mark you brainliest

Answer:
The correct choice is option A. 8 / x^6
Step-by-step explanation:
= (2/x^2)^3
= 2^3 / (x^2)^3
= 8 / (x^2)^3
(x^2)^3 = x^6
= 8 / x^6