In this exercise, an Assertion is followed by the Reason. Mark the suitable answer from the given options:
| Assertion (A): | If the quadratic equation \((a - b)x^2 + (b - c)x + (c - a) = 0\) has equal roots, then \(2a + b = c\). |
| Reason (R): | If the discriminant of the equation \(ax^2 + bx + c = 0\) is zero, then the roots are \(-\frac{b}{a}, -\frac{b}{a}\). |