Which statement is true about inverse functions? A) If a function f is one-to-one, then f has an inverse function f^-1.
B) In a one-to-one function, each x-value corresponds to only one y-value. and each y-value corresponds to only one x-value.
C) The graphs of f and f^-1 are reflections of each other about the line y = x.
D) All three statements are true.