Why did Chinese and Japanese end up in the United States?

• A. Seeking gold in western mines
• B. Building the transcontinental railroad
• C. Seeking religious freedom
• D. Serving as merchants along the coast

Answer: (B)

The key idea being tested is how a major labor need can drive large-scale immigration. Building the transcontinental railroad required an enormous, willing workforce to tackle dangerous, grueling work through mountains and deserts. Chinese workers were recruited specifically to fill these roles, and their labor was crucial to completing the railroad, which connected the country from coast to coast. That connection and the accompanying economic opportunities drew many Chinese—and, later, other Asian immigrants—into the United States. The other options don’t fit as well: gold mining attracted people earlier in history but isn’t the defining reason for large-scale Chinese and Japanese presence; religious freedom wasn’t a primary driver for these groups in this era; and merchants along the coast reflect an established trade pattern rather than the mass labor migration tied to a single national project.