What is this supposed to be?
Actually NET ID or Network identifier and ip addresses are both linked to each other. There is no way to get an NET id without an IP address. You can get your NET id on ip calculating websites, by posting your IP address and letting them determine what NET id you have.
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!