Consider the function f(x) = 2x and the function g(x) shown below. How will the graph of g(x) differ from the graph of f(x)? A. The graph of g(x) is the graph of f(x) shifted up by a factor of 2. B. The graph of g(x) is the graph of f(x) stretched horizontally by a factor of 2. C. The graph of g(x) is the graph of f(x) shifted to the right by a factor of 2. D. The graph of g(x) is the graph of f(x) stretched vertically by a factor of 2.