The Text States,"The Question of Media Bias Depends Entirely on the Particular

The text states,"The question of media bias depends entirely on the particular medium's own definition of objectivity-its stated commitment to avoid partisan or political bias." Which of the following would then be considered bias?

A) an openly conservative radio host endorsing a conservative candidate
B) an openly liberal radio host endorsing a liberal candidate
C) an impartial or objective television host endorsing a particular candidate
D) an impartial or objective television host criticizing all the candidates
E) an openly liberal television host criticizing a conservative candidate