"Disinformation" is a key term in the article. How does the author refine the meaning of this word over the course of the article?
(A) by highlighting different methods for countering disinformation
(B) by providing multiple examples of the types of disinformation being spread
(C) by explaining what social media companies have done to prevent the spread of disinformation
(D) by citing data about the most likely sources of disinformation