Simplify the Complex Number and Write It in Standard Form $- 42 i ^ { 5 }$

Multiple Choice

Simplify the complex number and write it in standard form.
$- 42 i ^ { 5 }$

A) $- 42 i ^ { 3 }$
B) $42 i ^ { 3 }$
C) $- 42 i$
D) $- 42$
E) $42 i$