Which of these is most closely related to the Union Pacific Railroad?

A. Greenback Party

B. Credit Mobilier

C. Bimetallism

D. Bland-Allison Act

The answer would be the Crédit Mobilier. This was made to public attention in 1872, tangled the Union Pacific Rail Road and the Crédit Mobilier of America Construction Company in the construction of the eastern lot of the First Transcontinental Railroad.

I believe the answer is: B. Credit Mobilier

Credit Mobilier was a really known banking company in 19th century which had a lot of investment in the development of railroad.

The upper management of Union Pacific Railroad worked together with credit mobilier in a financial scam to avoid tax payment.