Which of the following statements is true regarding the construction of the transcontinental railway?

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Which of the following statements is true regarding the construction of the transcontinental railway?

A. The Sierra Nevadas were the most difficult obstacle for the Union Pacific Railroad.
B. Most workers for the Union Pacific Railroad were Chinese.
C. Most workers on the Central Pacific leg of the railway were Chinese.
D. Construction began in Omaha, Nebraska, in 1863 and in Sacramento, California, in 1865.

B. Most workers for the Union Pacific Railroad were Chinese.

Most workers on the Central Pacific leg of the railway were Chinese

i got 95 because this one
the right answer

To determine which of the following statements is true regarding the construction of the transcontinental railway, we first need to know what the statements are. Please provide the options or statements you would like to evaluate.