There is a copyright law which compels all publishers to submit copies of their publication to

### Why this is right The rule described is **legal deposit**: a statutory requirement for publishers to provide copies of works they publish to a designated institution. In this question, the designated institution is the national library, which preserves the country’s published record. ### The concept A **national library** is an institution responsible for collecting and preserving publications from its country. Legal deposit helps it build a lasting record of books and other publications, which people can consult for research and reference. The duty falls on publishers because they produce and distribute the publications; it is not simply a request to donate them. The exact materials covered and the number of copies required can vary by country and by law. A public library mainly serves a local community, while an academic library mainly supports a school or university. ### The other options - **A. public library**: A public library serves readers in a community, but it is not the national institution identified by the legal-deposit rule in this question. It may receive publications through other routes. - **B. academic library**: An academic library supports teaching and research at an educational institution. That role does not make it the national repository for publishers’ deposited copies. - **D. none of the above**: This fails because the national library is listed as an option and is the institution specified here. ### Watch out A public library may be open to everyone, but that does not make it a national library. Focus on the institution responsible for preserving the country’s publications. ### Terms - **Copyright**: Legal protection for a creator’s original work, including rules about how it may be copied or distributed. - **Legal deposit**: A legal requirement for publishers to submit copies of certain publications to a designated library or other institution. - **Publisher**: A person or organization that prepares and issues a work for public distribution. - **National library**: A library with responsibility for collecting and preserving a country’s published record. ### Remember When a question asks where publishers must deposit copies under a national legal-deposit rule, look for the national library.