Why Did Most Countries Largely Abandon Keynesian Policies in the 1970s

Why did most countries largely abandon Keynesian policies in the 1970s and 1980s?

A) In the face of economic globalization,governments lost the ability to control economic life as they once had.
B) The publication of Adam Smith's The Wealth of Nations pushed governments toward more liberal economic policies.
C) High rates of unemployment forced governments to admit that Keynesian policies had failed and to look for alternatives.
D) The fall of the Berlin Wall demonstrated the failure of communist economic policies in general and Keynesian economics specifically.