Answer
[tex]\sqrt[7]{a^{5} }[/tex] is the correct answer to the given question.
Step-by-step explanation:
The given question is incomplete the options are missing also the question is also not well described the question is [tex]a^{5/7}[/tex].
[tex]a^{5/7}[/tex]
So it can be written as [tex]\sqrt[7]{a^{5} }[/tex] is the correct answer.