The function $\frac { 1 - x } { \sqrt [ 3 ] { x ^ { 2 } } }$ is defined for all $x \neq 0$.
The complete set of values of $x$ for which the function is decreasing is
A $x \leq - 2 , x > 0$
B $- 2 \leq x < 0$
C $x \leq 1 , x \neq 0$
D $x \geq 1$
E $- 2 \leq x \leq 1 , \quad x \neq 0$
F $x \leq - 2 , x \geq 1$