estion 47 (1 point) Raul Prebisch, based at the Economic Commission for Latin America and Hans Singer, based t the United Nations Industrial Development Organization, both provided the intellectual ationale for O 1) import substituting industrialization O 2) the rapid development of the service sector industry. O 3) free trade. 4) liberation theology Solution Raul Prebisch and Hans Singer gave Prebisch-Singer hypothesis which formed the basis of dependency theory and supported theories like import substitution. The correct answer to this question is \"1\" import-substituting industrialization..