What does a Free Software license define?

A Free Software license primarily defines the conditions under which the licensed software can be modified and distributed. This means that users are granted certain freedoms, such as the ability to use the software for any purpose, access to the source code, and the right to alter the software to suit their needs. Additionally, it allows users to share their modifications with others, thus promoting collaboration and innovation within the software community.

This focus on modification and distribution is critical to the philosophy of Free Software, which advocates for user empowerment and community-driven development. By clarifying these rights, the license fosters an environment where users can contribute to the software's improvement, ensuring that it can evolve and adapt to meet changing needs.

The other options address different aspects of software but do not relate specifically to the core purpose of a Free Software license: managing the rights and responsibilities associated with modifying and redistributing the software.