Find the Value for the Function $- f ( x )$

Multiple Choice

Find the value for the function.
-Find $- f ( x )$ when $f ( x ) = 2 x ^ { 2 } + 4 x - 4$

A) $2 x ^ { 2 } - 4 x - 4$
B) $- 2 x ^ { 2 } - 4 x + 4$
C) $2 x ^ { 2 } - 4 x + 4$
D) $- 2 x ^ { 2 } - 4 x - 4$