Which of these situations qualify as plagiarism

What are the benefits of using infographics to express information?

“what i heard was abominable,” said utterson. “it can make no change. you do not understand my position,” returned the doctor, with a certain incoherency of manner. “i am painfully situated, utterson; my position is a very strange—a very strange one. it is one of those affairs that cannot be mended by talking.” –the strange case of dr. jekyll and mr. hyde, robert louis stevenson write two to three sentences explaining how this passage creates suspense.

What is going to happen to all that milk? " said someone. "jones used sometimes to mix some of it in our mash," said one of the hens. "never mind the milk, comrades! " cried napoleon, placing himself in front of the buckets. "that will be attended to. the harvest is more important. comrade snowball will lead the way. i shall follow in a few minutes. forward, comrades! the hay is waiting." in at least 100 words, why do the animals in animal farm refer to each other as "comrades"?