The Trend in Concentration of Traditional Media Ownership Occurred in Large

The trend in concentration of traditional media ownership occurred in large part due to

A) the relaxation of government regulations in the 1980s and 1990s.
B) government regulations enacted in the 1970s that required small media companies to
Sell their holdings to larger corporations.
C) the Supreme Court's decision in Red Lion Broadcasting Company v.Federal Communications Commission.
D) the federal government's decision to end the fairness doctrine in 1968.