The function f(x) is shown in this graph. The function g(x) = -3x - 6. Compare the slopes.

A. The slope of f(x) is less than the slope of g(x).

B. The slope of f(x) is undefined, and the slope of g(x) is negative.

C. The slope of f(x) is the same as the slope of g(x).

D. The slope of f(x) is greater than the slope of g(x).