The correct option is A
(8,0)
Any points that lies on the x-axis has the coordinates in the form of (h, 0), where h is any real number.
If the perpendicular distance of the point A which lies on the x-axis is 8 units from the origin, then h can be +8 or –8.
Therefore, the coordinates of A can be (8, 0) or (–8, 0).
Hence, the correct answer is option (a).