Open-source software:
ARequires payment
BCannot be modified
CHas freely available source code
DIs always insecure
Answer & Solution
Correct answer: C. Has freely available source code
1. Open-source licences permit free use, modification, distribution.
2. Examples: Linux, Firefox, LibreOffice.
3. Hence freely available source code.
_Source: UGC NET Paper 1 Study Book (ugc-net.com class notes) — Open Source_