How did industrialization spread to the continent of Europe A) The United States sheriffs expertise in exchange for resources
B) British worker secretly brought in textile machinery plans
C) Britain shared at secrets to get support from allies
D) Germany shared his plans for how to build railroads

The answer would be a

The transcontinental railroad provided a means of fast transportation. it cut a 6 month trip into 6 days, created jobs for many people and encouraged immigration. the homestead act played a huge role in western expansion; it allowed settlers to begin a fresh start, and gave them land in exchange for their residence for up to five years and a small fee.