Question 13If \(y = x^{3} - x^{2} - x + 6\), find the values of x at the turning point.A.\(\frac{1}{2}, 3\)B.\(\frac{1}{3}, -\frac{1}{2}\)C.\(1, -\frac{1}{3}\)D.\(1, \frac{1}{3}\)Objective Show full explanation