The answer that isn't an example of plagiarism would be 'D. Quoting with Source' that means you are giving credit where credit is due and not taking or copying other work which is the definition of plagiarism.
I'm not sure about the second one but I believe it might be 'A. Students and Teachers'.
Hope this helped!
Answer:
C. an example of open-source software.
Explanation:
open-source software is the type of software in which anyone can access, it can also be shared And modified by anyone simply because ita accessible to the public.
Hence and open source software's source code can be
inspected, enhanced and modified by anyone. A typical example is Linux.