Find a Value of C That Makes the Function Continuous $$f ( x ) = \left\{ \begin{array} { c c } x ^ { 2 } - 4 , & x < 0 \\c , & x = 0 \\- 2 ( x - 1 ) - 6 , & x > 0\end{array} ; x = 0 \right.$$

Multiple Choice

Find a value of c that makes the function continuous at the given value of x. If it is impossible, state this.
- $$f ( x ) = \left\{ \begin{array} { c c } x ^ { 2 } - 4 , & x < 0 \\c , & x = 0 \\- 2 ( x - 1 ) - 6 , & x > 0\end{array} ; x = 0 \right.$$

A) -2
B) -4
C) Impossible
D) 4