A newspaper publishes an article attacking an American politician, accusing him of taking bribes, blackmailing police officers, and spying on citizens. Which of the following, if true, would most likely indicate that the article was biased against the politician?

A. It was written by a person who saw the politician commit the crimes.
B. It was written by one of the politician's most bitter political enemies.
C. It was written by one of the politician's former college professors.
D. It was written by a journalist who supports her claims with photographs.