For each diagram, choose the correct pair of congruent inscribed angles.
1. A. angles A and C
B. angles A and B
C. angles A and D
D. angles B and D
2. A. angles DAB and DCB
B. angles B and D
C. angles A and C
D. angles ADB and CBD
3. A. angles BOC and AOD
B. angles AED and AOD
C. angles ADB and CAD
D. angles AOB and AOB