24. Consider a situation in which two countries (A and B) are producing a single good with labour and capital, and that initially the return to capital (i.e. the marginal product of capital) is higher in country B. Free migration from A to B will: (a) increase the GDP of both countries (b) increase the wage rate in both countries (c ) increase capitalists' incomes in both countries (d) decrease the wage rate in both countries (e ) none of the above