Simplify the Complex Number and Write It in Standard Form $\frac { 1 } { ( 2 i ) ^ { 3 } }$

Multiple Choice

Simplify the complex number and write it in standard form.​ $\frac { 1 } { ( 2 i ) ^ { 3 } }$ ​

A) ​ $\frac { 1 } { 2 } i$
B) ​ $- \frac { 1 } { 8 } i$
C) ​ $\frac { 1 } { 8 } i$
D) ​ $- \frac { 1 } { 2 } i$
E) ​8i