Each Option: 1 Mark
a. Perpendicular bisector divides the line segment into two equal parts making a right angle. So, figure (ii) shows the perpendicular bisector.
b. In figure (ii) and (iii), the line segments are divided into two equal parts. So, they show bisectors.
c. In figure (iii), the line segment is divided into two equal parts only. So, it shows the only bisector.
d. In figure (i), line segment is intersected at 90∘. So, it shows a perpendicular only.