If the media chooses to focus on a war in the middle east rather than discussing some positive economic news from that region, it is engaging in –. this is directly related to the media's power of –.

Selection bias , Agenda setting  

Explanation:

            Selection bias in media is represented by the stories or news which is covered by the media person and how they are covered in the media. Media selection bias can influence the politics by focusing on the issues that politicians and others pay attention to.

           Agenda setting --- Media plays an important role in agenda settings. It means if some particular news is not covered by the media, then nobody pays attention to those news.

          Thus when the media in the Middle East reports to the war in the region and neglects any positive economic news from the region, it shows the selection bias of the media and it is directly related to the agenda setting power of the media because it affects the political affairs in the region.

Hence the answer is ---

Selection bias , Agenda setting  

can you explain a little further maybe give multiple choice? ?