Which one of the following points lies on the x-axis?

The correct answer is Option (4) → (1, 0)

Every point on the x-axis is at height 0, so its y-coordinate (the second number) is 0. Only (1, 0) has y = 0. The point (0, 2), with x = 0, lies on the y-axis, and (2, 3) and (−1, 3) lie off both axes.