Adam is asked to construct the bisector of ∠R. Explain the error in Adam's work. Choose the correct answer below.
A.
Adam started the construction on the wrong ray. He should have started on the other ray.
B.
Adam didn't draw a third arc to verify that the second point on the bisector was correct.
C.
Adam changed the setting of his compass at some point during the construction, making his bisector incorrect.
D.
Adam started the construction at the wrong place. He should have started at point R and drawn an arc that intersects both rays.