Algebra-1

When the discriminant is equal to 0, it means that b² - 4ac = 0 in the quadratic equation ax² + bx + c = 0.

In this case, there is exactly one real solution to the quadratic equation.

To further explain the options:

A. One real solution: This is the correct choice. When the discriminant is 0, there is precisely one real solution to the quadratic equation.