Please help Quick ASAP QUICKLY I NEED THE ANSWER RIGHT KNOW PLEASE HURRY
In the figure shown, which pair of angles must be complementary?
A.∠COD and ∠DOB
B.∠AOC ​ and ∠COD
C.​ ∠AOC ​ and ​ ∠DOB ​
D.​ ∠COB ​ and ∠AOC