(if) the magician were to get leery warnings about how he can turn bad from using too much power, you would expect for it to (maybe) happen some point during the story.
Blogs are not reviewed unlike other news sources. Bloggers simply speak their mind and take on an issue. While what they say may be supported by facts, we can never be sure of such. It is therefore recommend to refrain from using blog sources, unless these are from certain credible projects and programs and the alike. Thus, B may be the best answer.
A. To enlighten that is the purpose
