Which of the following best describes open source software?

Open source software is defined by its source code being publicly available, allowing users to view, modify, and distribute it. This characteristic fosters collaboration and innovation among developers since anyone can contribute to the software’s development or customize it for their specific needs. Because the source code is accessible, users often have the freedom to adapt the software without restrictions, leading to a more versatile and community-driven product.

The other options do not accurately describe the essence of open source software. For instance, compiled code being released suggests the software is closed, which contradicts the open-source philosophy. Similarly, characterizing software as expensive and proprietary inherently conflicts with the notion of open source, which aims to be accessible and often free. Lastly, warranties and support being guaranteed is typically not a feature of open source software, as it relies on community support rather than formal customer service models.