Well if an author uses very negative words, then the tone of the article goes that way. If they were discussing something political and the author used a lot of hurtful words then it makes the tone of the article seem very anti whatever they were writing about.
I think the correct answer would be C but I could be wrong.
Answer:
A. The bias is negative because it is speaking negatively about reading.
B. "waste of time.", "They don't really lean anything that is useful about how to deal with everyday problems.", "boring".
Explanation:
Hope this helped!! :3