Which of these following scenarios does not constitute plagiarism?
(1) Copy an answer word for word from textbook.
(2) Uploading an answer to an almost identical question that was found
online.
(3) Using a quote found in an external source without properly citing
that source.
(4) Using a external quote in an otherwise original document and properly
citing its source.
看完之后大概只能理解50`60%
不太知道要选那一个 请教一下英文好的网友们 谢谢