Which of the following statements is true regarding the construction of the transcontinental railway?
a. Construction began in Omaha, Nebraska, in 1863 and in Sacramento, California, in 1865.
b. Most workers for the Union Pacific Railroad were Chinese.
c. Most workers on the Central Pacific leg of the railway were Chinese.
d. The Sierra Nevadas were the most difficult obstacle for the Union Pacific Railroad.
"b. Most workers for the Union Pacific Railroad were Chinese" would be the best option from the list, since immigrant labor was used during this time for a variety of large-scale projects.
