circle graphThe center of the circle is labeled Upper O. Upper A and Upper C are points on the circle such that a line segment connecting them passes through Upper O. A line segment connects Upper O to point Upper B on the circle. It appears that modifying above Upper O Upper B with bar is perpendicular to modifying above Upper A Upper B with bar. A line segment connects Upper B and Upper C.

Use the circle.
Identify all of the central angles of circle O.
A. angle AOB, angle BOC, angle AOC
B. angle AOB, angle BOC, angle OBC
C. angle AOB, angle BOC, angle OBC, angle AOC
D. angle AOB, angle BOC

C. angle AOB, angle BOC, angle OBC, angle AOC