Factor Out the Variable That Is Raised to the Smaller $7 x^{-8}+x^{-2}$

Multiple Choice

Factor out the variable that is raised to the smaller exponent
- $7 x^{-8}+x^{-2}$

A) $x^{-8}\left(7-x^{6}\right)$
B) $x^{-8}\left(7-x^{-6}\right)$
C) $x^{-8}\left(7+x^{6}\right)$
D) $x^{-8}\left(7+x^{-6}\right)$