Economist: Any country that is economicall
问题：
Economist: Any country that is economically efficient will generate wealth. Such a country will remain politically stable only if that wealth is distributed equitably. The equitable distribution of wealth puts an end to risk taking, the indispensable precondition of economic efficiency.
Which of the following conclusions can be properly drawn on the basis of the statements above
A．No country can indefinitely remain both economically efficient and politically stable.
B．No country can indefinitely remain both politically unstable and wealthy.
C．Economic efficiency is the indispensable precondition for the generation of wealth in a country.
D．Any country in which wealth is distributed equitably will indefinitely remain politically stable.
E．(E) Growing economic efficiency encourages risk taking, which in turn leads to further growth in economic efficiency.
。砌体施工质量控制等级B级，结构安全等级二级。