Write with Positive Exponents $\frac { 1 } { x ^ { - 7 / 8 } }$

Multiple Choice

Write with positive exponents. Simplify if possible.
- $\frac { 1 } { x ^ { - 7 / 8 } }$

A) $- x ^ { 7 / 8 }$
B) $x ^ { 7 / 8 }$
C) $\frac { - 1 } { \mathrm { x } ^ { 7 / 8 } }$
D) $\frac { 1 } { x ^ { 8 / 7 } }$