What Was One of the Changes That Transformed American Newspapers

What was one of the changes that transformed American newspapers in the decades before the Civil War?

A) Publishers had to increase the price in order to maintain a profit.
B) Fewer newspapers were printed because Americans turned to other sources of information.
C) Most of them became semi-official organs of national political parties.
D) They began to print more political and commercial news rather than celebrity news.
E) They began to print "human-interest" stories rather than just political and commercial news.