The correct answer is A.
It is the only option which is completely objective because the author is just stating facts, without actually offering his or her personal opinions on the topic. The other options are rather biased - they show the author's personal feelings by using words such as amazing, should read, best idea, etc.
The correct answer among the choices given is option C. I<span>ncluding a famous proverb to explain a concept is not an example of plagiarism given that there are proper quotations or citations. Plagiarism is copying other ideas without acknowledging them and making these ideas as your own</span>