Answer the following questions:

(Do not attempt to solve if you cannot answer all!!!!!!!)

Unlike the steel industry, the automobile industry Select one: O A. became more concentrated O B. became less concentrated O C. remained the same in terms of concentration O D. constantly fluctuated in terms of concentration Differences in what can explain the wage gap between U.S.-born and foreign-born workers? Select one: O A. Culture O B. Schooling C. Urbanization O D. All of the above The principal elements that sustain growth in the U.S. economy include which of the following? Select one: A. A tradition of growth, secure property rights, and an overall optimism concerning the future of the US economy O B. Social mobility O C.Ageneral acceptance of technological change O D. Popular democracy and calculable law O E. All of the above