Answer:
D. Point
Explanation:
A plane is two dimensional surface, For example
if we have a x and y axis and there is a square on it then it will a plan on x and y axis.
If there is a line perpendicular to the plane then then line will be on third dimension that is z axis.
If a line from third dimension intersect at plane then it will intersect at only on point.
It can be explained by
suppose you have have square paper. Then it is a plane (let say x and y axis)
now if you put a pencil on it thoroughly straight, then that pencil will be meet the paper at one point only. If that pencil passes through paper it will not touch paper at any other point apart from the point where it touch the paper.
Thus,
based on this discussion we can say that
A line perpendicular to a plane, would intersect the plane at one D. point