The correct response is:
The parent function shifted vertically down 3 units and did not change in any other way.
This is accurate because the translation from \( f(x) = x^2 \) to \( f(x) = x^2 - 3 \) represents a vertical shift downward by 3 units. The shape and width of the parabola remain the same since the transformation does not involve a horizontal shift or a change in the width.