Question

Which were results of the construction of the transcontinental railroad?

Choose all answers that are correct.

A.
Completion of the railroad helped unite the country and heal the wounds of the Civil War.

B.
Native Americans frequently raided camps and killed thousands of railroad workers.

C.
Hard-working Chinese tracklayers were treated with new respect by their supervisors.

D.
The railroad opened new markets for agricultural products from the Great Plains.