___________ played a significant role in the construction of the Central Pacific track of the Transcontinental Railroad, while ____________ played a significant role in the construction the Union Pacific track.

A) Native Americans
B) European immigrants
C) Irish immigrants
D) Chinese immigrants

1 answer

The correct answer is:

D) Chinese immigrants played a significant role in the construction of the Central Pacific track of the Transcontinental Railroad, while C) Irish immigrants played a significant role in the construction of the Union Pacific track.