The function g(x) = f(x + 2). Which of the following is true about the graph of g(x).
A. The graph of g(x) is shifted 2 units to the right of the graph of f(x).
B. The graph of g(x) is shifted 2 units to the left of the graph of f(x).
C. The graph of g(x) is shifted 2 units below the graph of f(x).
D. The graph of g(x) is shifted 2 units above the graph of f(x).