Let f (a) = 3 23 - 2x2 + 5x + 3 be defined on the entire real line. Which of the following statements is true? O f has exactly one critical point located at 2 = 1. O f has one local minimum at a = 1 and another local minimum elsewhere. O f has one local minimum at 2 = 1 and a local maximum elsewhere. Of has one local maximum at a = 1 and another local maximum elsewhere. | has one local maximum at . - _ and a local minimum elsewhere