Please help?

4. Which of the following steps is not part of constructing a perpendicular line to the given line? (1 point)

A. Put any point above or below the line.
B. Draw two intersecting arcs above the line, equidistant from the line.
C. Draw two arcs on the line equidistant from point F.
D. Use a compass to draw two arcs, equidistant from the line, one above and one below.

Question

Please help?

4.  Which of the following steps is not part of constructing a perpendicular line to the given line?  (1 point) 

A. Put any point above or below the line. 
B. Draw two intersecting arcs above the line, equidistant from the line. 
C. Draw two arcs on the line equidistant from point F. 
D. Use a compass to draw two arcs, equidistant from the line, one above and one below.