Some people think that if a country can operate its economy efficiently, it will be able to create wealth and become rich: and if such a country wants to maintain political stability, the wealth it creates must be distributed fairly; the fair distribution of wealth will end economic risks; however, the existence of risks is an indispensable prerequisite for the efficient operation of the economy. Which conclusion can be drawn from the above viewpoints? ['Political stability and economic wealth cannot coexist in a country.', 'Political stability and economic efficiency cannot coexist in a country.', 'The economic operations of a rich country must be effective.', 'A politically unstable country must be full of economic risks.']