Rewrite the Expression $\frac { 1 } { 2 z ^ { - 5 } }$

Multiple Choice

Rewrite the expression $\frac { 1 } { 2 z ^ { - 5 } }$ using only positive exponents. Assume that z is not zero.

A) $32 z ^ { 5 }$
B) $- \frac { z ^ { 5 } } { 2 }$
C) $\frac { z ^ { 5 } } { 2 }$
D) $2 z ^ { 5 }$
E) - $2 z ^ { 5 }$