Answer:
b, c, e
Explanation:
a. ∠AOC & ∠COB are complementary angles.
b. ∠AOC & ∠COB are supplementary angles.
c. ∠AOC & ∠COB are adjacent angles.
d. ∠AOC & ∠COB are vertical angles.
e. ∠AOC & ∠COB are a linear pair of angles.
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