Factor Out the Variable That Is Raised to the Smaller $x^{-9}-7 x^{-4}$

Multiple Choice

Factor out the variable that is raised to the smaller exponent
- $x^{-9}-7 x^{-4}$

A) $x^{-9}\left(1-7 x^{5}\right)$
B) $x^{-9}\left(1+7 x^{-5}\right)$
C) $x^{-9}\left(1+7 x^{5}\right)$
D) $x^{-9}\left(-1+7 x^{5}\right)$