Answer:
B. A radio show plays gloomy music every time it mentions the President
Step-by-step explanation:
The media bias can simply be defined as taking sides by the media because of their own interest, or because they have relations with certain side (political, corporation etc.), thus they use methods to make the other side seem bad every time they can. In this case, we have a situation where the radio station is always playing gloomy music in the background when the President is mentioned. This is with an intention to make the President look bad and terrifying to the public, thus trying to make the people change their minds about him/her.