I think grafitti not good and illegal. There are different forms like the non-innapropriate art on buildings and the sidewalk, that is ok. But when there is graffitti on a playground or on nature, that is deffinently not ok and that is when it becomes illegal.
Answer: b) The author explains how events impacted people's lives and how people adapted to those changes. This gives a more reasonable claim so the author can list more factual evidence.