Quadrilateral bcde is inscribed in circle a as shown. bd divides the quadrilateral into two triangles, abcd and abed. which statement is true about the triangles?
• a. the angle bisectors and the perpendicular bisectors for both triangles intersect at the same point.
• b. the angle bisectors of abcd intersect at the same point as those of abed.
• с. the perpendicular bisectors of abcd intersect at the same point as those of abed.
• d. the angle bisectors of abcd intersect at the same point as the perpendicular bisectors of abed.