The graph of the function y = f(x) is stretched horizontally by a factor of 1/4 and stretched vertically by a factor of 3. Then, it is reflected in the x-axis and translated 2 units to the left. The equation of the transformed function can be written as a.y = -4f(3x + 2) b.y = -3f(4x+8) c. y = 3f(4x + 2) d. y = 4f(3x + 4)