The graph of f(x) = x was transformed to create g(x) = -7f(x) . Which statement about the graphs is true? A - reflection over the x-axis and a horizontal stretch by a factor of -7

B - reflection of the y-axis and a vertical stretch by a factor of -7

C - reflection over the x-axis and a vertical stretch by a factor of 7

D - reflection over the x-axis and the graph would shift up 7 units