Let $f(x) = x² + bx + 2$ for all real numbers $x$. For what real values of $b$ is $-2$ not in the range of the function $f(x)$? Express your answer in interval notation.
A) $(-[infinity], -6) ∪ (2, [infinity])$
B) $(-[infinity], -2) ∪ (2, [infinity])$
C) $(-[infinity], -2) ∪ (-6, [infinity])$
D) $(-[infinity], -6) ∪ (-2, [infinity])$