Consider the following invention from the American Industrial Era.

cotton gin - a machine that removed seeds from short-staple cotton

Which option explains how this invention contributed to the role of the United States as an emerging world power?

A. It was in high demand abroad, as many European nations had begun farming cotton.

B. It led to the decline of slavery in the South, which enhanced America's international reputation.

C. It freed up many slaves to become factory workers in Northern cities, which improved the economy.

D. It increased production efficiency of a US cash crop that was in high demand in other nations.

the answer is D, It increased production efficiency of a US cash crop that was in high demand in other nations.

The correct answer is D) It increased production efficiency of a US cash crop that was in high demand in other nations.

The option that explains how the invention of the cotton gin contributed to the role of the United States as an emerging world power is " It increased production efficiency of a US cash crop that was in high demand in other nations."

The cotton gin invention came to revolutionize the production and selling of cotton in the United States. The cotton gin is a machine that separates the fibers of the cotton from their seeds. This, of course, was a much more quick procedure than doing by hand. Then you could produce linens and the separated seeds could be used again to put them on the soil and grow more cotton. Many people also used the seeds to produce cottonseed oil. This way, farmers had a more efficient and effective manner to produce cotton, seel it and export it.