According to Fair Use guidelines, what percentage of a copyrighted song can be used for educational purposes?

Fair Use guidelines generally allow for the use of a limited portion of a copyrighted work without permission from the copyright holder, particularly for educational purposes. In the context of using music, the guidelines specifically state that educators may use up to 10% of a copyrighted song without seeking permission. This percentage is designed to strike a balance between the interests of copyright owners and the educational needs of students.

The other options reflect amounts that exceed the generally accepted limits for Fair Use in an educational setting. Using 25% or 50% of a copyrighted song would typically not fall within the guidelines of Fair Use, as they represent a more substantial portion of the work, which could potentially infringe upon the copyright holder's rights. Since 0% implies that no use of copyrighted material is permitted, it does not align with the Fair Use provisions that specifically allow for some limited educational use. Thus, 10% stands as the appropriate measure within educational contexts according to Fair Use guidelines.