The graph of the function f is the graph of the function g compressed horizontally by a factor of 2 and shifted to the right by 1. Which of the following correctly defines the function f? A) f(x) = g(2x - 1) B) f(x) = g(2x - 2) C) f(x) = g(1/2 * x - 1/2) D) f(x) = g(1/2 * x - 1)