and were the two companies hired to build the railroad.
A
Homestead, Pacific Railway

B
Atlantic Union, Pacific Union

C
Union Pacific, Central Pacific

D
Promontory Summit, Ulysses S. Grant

C

Union Pacific, Central Pacific

c

explanation:

once he became head of state in 1915, venustiano (his name was not victoriano) carranza was able to implement some of his ideas, such as the drafting and the promulgation of the mexican constitution of 1917, which is still the current constitution of that country.