For drawing a perpendicular through a point outside a given line, which of the following method is used after drawing an arc from that point to the line intersecting at two points?

A. Angle bisector

B. Subtending an angle

C. Perpendicular bisector

D. Drawing a quadrilateral

I had been asked this question in an online quiz.

Question is taken from Construction of Parallel & Perpendicular Lines topic in section Geometrical Construction of Engineering Drawing

Right choice is C. Perpendicular bisector

The best I can explain: For drawing a perpendicular through a point outside a given line, an arc is drawn from that point to the line intersecting at two points. Then a perpendicular bisector is drawn between those points and thus making a perpendicular through the point outside the line.