(FLVS Geometry) PLEASE ANSWER QUICKLY- Which step is the same in the construction of parallel lines and the construction of a perpendicular line through a point on the line?

Create only one arc that intersects the original line.
Create two arcs that intersect the original line.
Place the compass on a point off the original line. -NOT
Place the compass on a point on the original line. -NOT

Please do not guess.