Which of the following constitutes plagiarism $($check all that apply$)?$

representing someone else's work as your own without acknowledging the source

using another's words and giving credit but doing so incorrectly

employing an assignment writing service or having someone else write a paper for you

submitting or reusing parts of a paper that was previously submitted for another course

Copying from a website and changing$/$rearranging some of the wording.