83 f (2 ) CO f'(x) -4 The table above gives selected values for a differentiable and decreasing function f and its derivative. Let q be the decreasing function given by g(x) = f(4x) - f(2x), where g(2) = f(8) - f(4) = -5. Which of the following describes a correct process for finding (g ) (-5) ? (A) (9 ) (-5) = 7(9-1(-5) = 712) and 9 (2) = 4f'(8)-2f'(4) (B) (9 ) (- 5) = (9-1(-5) = $12) and 9 (2) = f'(8) - f' (4) (C) (9 1) (-5) = 8(9-1(-5)) = g'(2) and g'(2) = f'(8) - f'(4) (D) (9 1) (-5) = 9'(9 1(-5)) = g'(2) andg'(2) = 4f'(8)-2f'(4)