Based on the chart below, which of the following countries had a more socialist system in the 1960s and 70s?

The country that possessed an extremely socialist system during the 1960s and 1970s would be:

C). USSR

Socialist System

Socialist System is characterized as the system in which the focus is laid upon the people or public and providing equal opportunities to everyone. In such a system, the resources are owned by the people equally and collaboratively. As per the question, during the 1960s and 1970s, USSR was the most socialist in its policies in comparison to the other states(in options) as it became a socialist in 1922 itself.

Thus, option C is the correct answer.

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Use the formula: (n-2)×180, where n is the number of sides(18-2)×180= 28800, now this is the full exterior angle of 18-gon so you divide it by 18.28800÷18=160