Open source software freedom concept – UGC NET Question

Open source software is defined by the freedom to access and modify the source code, usually under licences that allow redistribution. This model encourages collaboration and community based development. In ICT education, open source tools are often promoted for flexibility and cost effectiveness. Thus, the description in the stem clearly refers to open source software.

Option A:
Option A is correct because open source directly captures the idea of accessible source code and the right to modify and share, which is central to the definition. Many operating systems, learning platforms and office suites used in education follow this model.

Option B:
Option B, proprietary, software keeps source code closed and restricts modification and redistribution, which is the opposite of what the question describes. Users must follow strict vendor licence terms.

Option C:
Option C, freeware, is free of cost to use but may still have closed source code and restrictive licences. Freeware does not guarantee modification rights.

Option D:
Option D, shareware, allows users to try software for a limited time or with limited features, often requiring payment later, and does not necessarily provide source code access.