Which of the Following Actions Marked a Decisive Break with the Tradition

Which of the following actions marked a decisive break with the tradition of the federal government promoting compromises between labor and management?

A) When President Ronald Reagan fired striking air traffic controllers and hired permanent replacements to fill their jobs in 1981.
B) When President Reagan sent in the National Guard to break up picketing in front of major defense contractors in 1985.
C) When Congress passed and George H. W. Bush signed legislation dismantling the National Labor Relations Board in 1992.
D) When Congress passed and Bill Clinton signed legislation permitting companies to shut down without giving their employees advance notification in 1994.
E) When the National Labor Relations Act set up a framework for labor relations in 1935.