Recalling the graph of f(x) = x and its domain, read the following statements and choose the correct option. A. There is only one point of relative maximum. B. There is only one point of relative minimum. C. (0, 0) is the point of inflection O only 'C' is true. O only 'B' is true. All the three statements A, B and C are true. O only 'A' is true.