Which one of the following intellectual property rights is protected w

Which one of the following intellectual property rights is protected without making any registration?

Copyright
Patent
Industrial design
Trademark
This question was previously asked in
UPSC CDS-1 – 2017
Copyright is an intellectual property right that is protected without making any registration. Protection for copyrighted works (such as literary, dramatic, musical, and artistic works, and cinematograph films) arises automatically the moment the work is created and fixed in a tangible medium.
While registration of copyright is possible and provides certain advantages (like serving as prima facie evidence in court), it is not mandatory for obtaining copyright protection. The Berne Convention, to which India is a signatory, establishes that copyright protection is automatic and does not require formal registration.
Other intellectual property rights listed typically require formal registration for protection. A patent protects inventions and requires application and examination by a patent office. An industrial design protects the visual appearance of a product and requires registration. While unregistered trademarks can gain some protection through common law rights based on use, statutory protection (which is stronger and easier to enforce) requires registration.