Which statement is true about open source software?

The statement that is true about open source software is that it allows users to view and modify the source code. One of the fundamental principles of open source software is that the source code is made accessible to users. This enables individuals not only to examine how the software works but also to modify it according to their own needs or to contribute to its improvement. This collaborative nature fosters innovation and allows a community of developers to enhance and maintain the software over time.

In contrast to the other options, open source software may sometimes be available for free, but that is not a requirement; some open source projects may have charges associated with them for additional services. Open source software is typically not limited to specific platforms and can often be used across various operating systems, making it versatile and adaptable. Moreover, a subscription fee is not a requisite of open source software, as its availability is based on licensing agreements that promote sharing and use without upfront costs.