No dimensional object is

Dimensions – length, breadth, thickness (height)

If an object has none of the above dimensions, then it is no – dimensional (or) zero dimensional object

If an object has only length, it is one – dimensional

If an object has only length , width, it is two – dimensional

If an object has all three dimensions, it is three- dimensional

Option (a) : point has no length, no breadth, no thickness

$\therefore$ Zero dimensional object

Option (b) : Line segment has length,

$\therefore$ One dimensional

Option (c) : Plane has length and breadth

$\therefore$ Two dimensional