An illustration shows five rays with pionts near the arrows labled A B C D and E in a counterclockwise direction, emerging from a common point labeled O. The points A O and E fall on a straght line. All the four angles are marked but unlabled. Witch angle(s) are adjacent to /_ DOC?

/_ AOD
/_ AOB and /_ EOA
/_ EOD and /_ COB
/_DOB