The graph of the function f(x) = –(x + 6)(x + 2) is shown below.

On a coordinate plane, a parabola opens down. It goes through (negative 6, 0), has a vertex at (negative 4, 4), and goes through (negative 2, 0).

Which statement about the function is true?

A. The function is increasing for all real values of x where
x < –4.

B. The function is increasing for all real values of x where
–6 < x < –2.

C. The function is decreasing for all real values of x where
x < –6 and where x > –2.

D. The function is decreasing for all real values of x where
x < –4.

I'm quite sure that it's A, but just wanted to double-check.