What Was the "Era of the Partisan Press

What was the "era of the partisan press"?

A) a period prior to the Civil War when the press was overly partial to the federal government and acted as its mouthpiece
B) a period prior to the Civil War when most newspapers were owned by, or at least supported, one of the major political parties, and this bias was evident in their news
C) a period prior to the Civil War when the Democratic Party controlled all news sources
D) a period prior to and during World War II when the federal government issued a blackout order for all news reports about the war
E) a period of government censorship during the Civil War when all news outlets were controlled by the federal government