Each statement describes a transformation of the graph of f(x)=x. which statement correctly describes the graph of g(x) if g(x)= -8f(x)?

a- it is the graph of f(x) reflected about the x-axis and shrunk vertically by a factor of 8.

b- it is the graph of f(x) reflected about the x-axis and stretched vertically by a factor of 8.

c-it is the graph of f(x) reflected about the y-axis and shrunk vertically by a factor of 8.

d. it is the graph of f(x) reflected about the y-axis and stretched horizontally by a factor of 8.