Which set of factors BEST accounts for the reasons why the United States emerged as a global industrial power by 1900?

-Robust natural resources and fertile soil: This provided the US with fertile land suited for growing cash crops, producing raw materials and agricultural products, as well as sources of minerals, coal, oil and natural gas which were essential for industrial production.

-Access to capital: This enabled the US to develop significant investments into the development of industrial infrastructure and investments into innovation, which allowed the US to gain a comparative advantage in production technology.

-Investment in transportation infrastructure: The development of roads, railroads, canals, and steamships allowed the US to transport goods faster and more cheaply than its competitors, allowing the US to become a leader in global trade and transportation. It also facilitated the migration of tens of millions of Europeans and Asians to the US, supplying the workforce needed to produce the goods being exported.

-Robust financial system: This enabled the US to manage risk and finance infrastructure projects, such as railways, and attract additional capital to build factories and expand production.

-Incentives for innovation: The US government offered low taxes, subsidies, and other incentives to innovators and entrepreneurs, encouraging experimentation and facilitating the adoption of new technologies.

-Abundant labor supply: This allowed the US to supply the mass labor necessary to operate the large factories and industrial plants that began to appear in the late 19th century. This labor was fed by the migrations of millions of Europeans and Asians to the US.

These 6 factors best account for the reasons why the United States emerged as a global industrial power by 1900. Together, they enabled the US to increase its access to capital, transportation infrastructure and labor, as well as incentivise innovation and take advantage of its abundant natural resources. These factors allowed the US to become a leader in industrial production and global trade.

the nations wealth in population and resources, technological innovation, and laissez faire government policies