Rotational symmetry is also known as radial symmetry. The correct option is D.
What is Rotational symmetry?
In geometry, rotational symmetry, also known as radial symmetry, is the quality that a form exhibits when it looks the same after a partial rotation. The degree of rotational symmetry of an item is the number of possible orientations in which it looks precisely the same for each revolution.
The two-fold rotation is the rotation of a geometric object at an angle of 180 degrees about its centre. When the geometric figure is rotated, the orientation of the figure remains the same.
Since a line will look the same only when it is rotated by an angle of 180°. About its centre. Therefore, it can be concluded that the line will have a two-fold rotational symmetry.
Hence, the correct option is two-fold.
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