Which of the following does not constitute infringement under Section 52 of Copyright Act?

The correct answer is D. All of these.

Section 52 of the Copyright Act, 1957, lists certain acts that do not constitute infringement of copyright. These acts include:

• Making a backup copy of a computer program for personal use.
• Making copies of a work for the purpose of criticism or review.
• Quoting from a work in a newspaper, magazine, or other periodical.
• Reading an extract from a work in public, provided that the extract is not substantial and is accompanied by a sufficient acknowledgment of the source.
• Performing a work in public,
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  provided that the performance is
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  not for profit and is accompanied by a sufficient acknowledgment of the source.
• Broadcasting a work, provided that the broadcast is not for profit and is accompanied by a sufficient acknowledgment of the source.
• Making an adaptation of a work, provided that the adaptation is for the purpose of research or private study and is not published or communicated to the public.

It is important to note that these are just some of the acts that do not constitute infringement of copyright. There may be other acts that are not listed here that also do not constitute infringement. If you are unsure whether an act constitutes infringement, you should consult with a lawyer.