The correct answer is C. To get different points of view on the news.
Even though news are often based on the same facts, events can be perceived from different perspectives. These different perspectives or angles are translated into the news and give as a result different points of view. These differences rely heavily on the ideology and the interests each source represents and stands by.
So, as the manner in which information is presented may vary because they are subject to the standpoint from which each source looks at the event, we should get the news from different sources to create our own critical opinion about events.