2.which of the following statements best describes a keynesian approach to economics? a)aggregate demand is the most important driving force in the economy, but free-markets have no self-balancing mechanisms that lead to full-employment; therefore, government intervention is often necessary to stabilize an economy. b)politics determines economics, the nature of economics is conflictual, and the main actors are nation-states; therefore, the main goal of economic activity is the maximization of national interest. c)individual freedom to pursue interests/wealth in an open market free of government interference with the role of government to primarily protect property rights. d)resources flow from a periphery of poor and underdeveloped countries (global south) to a core of wealthy states (global north) enriching the latter at the expense of the former. poor countries are systemically locked into this unfavorable situation.