The correct answer is B. Summarizing a published article in 2-3 distinct paragraphs and including this in a paper.
Step-by-step explanation:
Plagiarism occurs as you incorporate the ideas or work of another person without acknowledging the original author. Due to this, instances of plagiarism include to copy, summarize or paraphrase an author without using proper citation as it is through citations you include information about the author and original source from which you took the information.
According to this, the situation that is likely to be an instance of plagiarism is "Summarizing a published article in 2-3 distinct paragraphs and including this in a paper" because in this case information was taken from another source without recognizing the author and even if the words are not the same than the original work you are stealing the ideas of another person by not showing these ideas are not yours.