Evaluate the Expression $\frac { 1 } { \sqrt { - 1 } }$

Multiple Choice

Evaluate the expression $\frac { 1 } { \sqrt { - 1 } }$ and write the result in the form $a + b i$ .

A) $0 + i$
B) $1 - i$
C) $i$
D) $0 - i$
E) $1 - i ^ { 2 }$