Identify the third step from the first four steps which describe constructing a parallel line through a point. a) set compasses' width to the distance where the lower arc crosses the two lines. b) without adjusting the compasses' width, move the compasses to r and draw an arc. c) draw a transverse line through r and across the line pq at an angle, forming the point j where it intersects the line pq. d) with the compasses' width set to about half the distance between r and j, place the point on j, and draw an arc across both lines.