Suppose f(x) = x2 and g(x) = (4x)2. Which statement best compares the graph of g(x) with the graph of f(x)?
O A. The graph of g(x) is horizontally compressed by a factor of 4.
B. The graph of g(x) is shifted 4 units to the right
O C. The graph of g(x) is vertically stretched by a factor of 4.
O D. The graph of g(x) is horizontally stretched by a factor of 4.