The economic policy Britain pursued in the 1950, and 1960s was b

The economic policy Britain pursued in the 1950, and 1960s was based on the theory of _______.
A、Adam Smith
B、John M. Keynes
C、Margaret Thatcher
D、Karl Marx
【正确答案】：B
【题目解析】：英国在20世纪50年代和60年代推行的经济政策是基于约翰·凯恩斯的理论。