Find All Values of the Real Number K Such That $\neq$

Multiple Choice

Find all values of the real number k such that the matrix A = is invertible.

A) k $\neq$ 12 , - 2
B) k = -4 , - 6
C) k = -2 , 12
D) k $\neq$ - 12 , 2
E) k = -12 , 2