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HELP ASAP!!!!

In the figure shown, which pair of angles must be complementary?


​ ∠AOC ​ and ​ ∠DOB ​


∠COD and ∠DOB


​ ∠COB ​ and ∠AOC


∠AOC ​ and ∠COD

HELP ASAP!!!! In the figure shown, which pair of angles must be complementary? AOC and DOB COD and DOB COB and AOC AOC and COD class=