I believe that would be A, a prepositional phrase does not have a verb or a subject. (:
She face over a lot of demons and had been going through death
The correct answer should be it affects society's trust in news outlets
One of the most important aspects of journalism is for the news to be credible. If they're not then people don't want to use them as a service for news. If plagiarizing occurs, the news source loses trust.