Sasha is bisecting a segment. First, she places the compass on one endpoint, opens it to a width larger than half of the segment, and swings an arc on either side of the segment. Then, she keeps the compass the same width and places it on the other endpoint. What is her next step?

Swing arcs on both sides to intersect the first two arcs created.
Swing an arc that intersects the segment.
Swing arcs that intersect a point that is not on the segment.
Swing an arc that intersects the opposite endpoint.