What is one characteristic of open-source software?

Open-source software is fundamentally characterized by its licensing which grants users the freedom to modify, use, and share the software without restrictions. This characteristic fosters collaboration and innovation, as developers and users are encouraged to improve the software and share their enhancements with the community.

The ability to access the source code means that users can tailor the software to meet their specific needs or contribute to its development, ensuring that it can evolve based on user feedback and technological advancements. This collaborative nature is a defining feature of open-source software and distinguishes it from proprietary software, which typically restricts modification and sharing.

In contrast, the other options describe characteristics not associated with open-source software. Paid software with limited access and subscription-based updates indicate proprietary models, while restrictions on sharing or redistribution also apply to closed-source solutions. Thus, the emphasis on modification and sharing solidifies option B as the definitive characteristic of open-source software.