Write $\sqrt { - 2 } \sqrt { - 4 }$

Multiple Choice

Write $\sqrt { - 2 } \sqrt { - 4 }$ in terms of i , perform the indicated operations, and simplify.

A) $- 2 \sqrt { 2 }$
B) $- 2 i \sqrt { 2 }$
C) $2 \sqrt { 2 }$