Leland Stanford was one of the big four who helped build

B

Explanation:

One of the "Big Four" who built California's Central Pacific railroad, Leland Stanford brought a sweeping political influence to the partnership that insured this privately financed project all the advantages of public funding. Stanford was born into a well off farming family in Watervliet, New York.

battle of saint-mihiel, (12–16 september 1918), allied victory and the first u.s.-led offensive in world war i. the allied attack against the saint-mihiel salient provided the americans with an opportunity to use their forces on the western front en masse.

explanation: