Nadine is constructing a line perpendicular to KE←→ . She has constructed the arcs as shown. What is the next step in her construction? Use a straight edge to draw a line through D and M. Use a straight edge to draw a line through M and E. Use a straight edge to draw a line through M and K. The image shows a horizontal line with points K, D, and E from left to right. Point D looks halfway between points K and E. An arc is shown at point K turning inwards towards point D. An arc is shown at point E turning inwards towards point D. Above point D is point M. Two arcs go through point M. One arc faces southwest towards point K and one points southeast towards point E.