Question

1) words are related to an examination?

1)Supervisor.
2)Supplement.
3)Warning bell.
4)All of the above​

Answer 1

Answer:

according to me, it should be

2) supplement

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Answer 2

Answer:

All of these.

Explanation:

Someone is needed for supervision.

Supplement is the main thing needed for an exam.

Warning bell is also important.

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