Home page usually refers to the page that initially displays if you type in http://www.example.com/ It's usally named index.html, index.shtml or the like.
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!
The first e-commerce service would be A)Banking. Hope this helps.
