Yvonne is constructing a line perpendicular to and passing through point A on using only a compass and a straightedge. She has drawn arcs with a compass of set width centered at point A intersecting in two places. Yvonne labeled the points of intersection B and C. Which of the following sentences describes her next step in the construction?

A. Place the compass needle on point A and set the width beyond point B.
B. Place the compass needle on point B and set the width of the compass beyond
point A.
C. Place the compass needle on point B and set the width to point A.
D. Place the compass needle on point A and set the width to half way between points B and A.