This would be an example of B. unintentional plagiarism. Plagiarism is when you take credit for someone else's work. If you are writing a paper and include someone else's work, but don't cite the reference correctly, you are unintentionally getting credit for their work. If you are purposely trying to pass the work off as your own, then it would be intentional. Hope this helps!
Answer: Click on the crown down to the right corner after Brainly notifies you to. A good joke: Q: If you have 13 apples in one hand and 10 oranges in the other, what do you have?