Final answer:
Between 1960 and 2010, the global economy grew significantly, school enrollment increased, and infant mortality rates dropped, all due to advancements in technology, education, governance, and healthcare. Hence, The correct answer is D.
Step-by-step explanation:
The question refers to changes in the global economy and societal indicators over the fifty years between 1960 and 2010. During this period, there was remarkable economic growth, with countries like Japan, South Korea, China, and Brazil experiencing significant increases in GDP per capita. This growth was possible due to factors like the Industrial Revolution that boosted worker productivity, advancements in technology, and improvements in governance and market institutions. The world economy indeed grew substantially, and there were corresponding improvements in other social indicators like education and health.
School enrollment increased as a part of the overall rise in human capital seen in many countries, and there was a noted drop in infant mortality rates due to advances in healthcare and improvements in living standards globally. Additionally, the population in countries like the United States grew, the education and skill levels of workers rose dramatically, technological innovations flourished, and there was a general uplift in physical capital per worker.
In light of these extensive enhancements in economic and social spheres, it is plausible to assume that all the claimed changes mentioned in the options (the growth of the global economy, the rise in school enrollment, and the reduction in infant mortality rates) likely occurred between 1960 and 2010. Thus, the most accurate answer would be that all of these changes happened during the 50-year span in question.