Which statement is true?
A.
The graph of function f is stretched vertically by a scale factor of 3 to create the graph of function g.
B.
The graph of function f is stretched horizontally by a scale factor of 3 to create the graph of function g.
C.
The graph of function f is compressed horizontally by a scale factor of to create the graph of function g.
D.
The graph of function f is compressed vertically by a scale factor of to create the graph of function g.