The correct answer is:
None of the provided scenarios represent plagiarism.
Here's a brief explanation of each option:
A. Michael properly quotes the reviewer and cites them, which is not plagiarism. B. Joseph correctly uses quotation marks and cites the press release, so it is not plagiarism. C. Irene notes details from scientific articles and includes them in her reference page, which is also not plagiarism. D. Ursula paraphrases the speech and appropriately attributes it to the prime minister, so this is not plagiarism either.
In all scenarios A, B, C, and D, the individuals properly attribute the sources they are using, which is the key to avoiding plagiarism.