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What did the Pacific Railroad Act of 1862 accomplish?

The Pacific Railway Act was signed into law by President Abraham Lincoln on July 1, 1862. This act provided Federal government support for the building of the first transcontinental railroad, which was completed on May 10, 1869.

From this, I think it is the second option, but I am not 100% sure. Hopefully this helps... :)

im pretty sure the answer is b, i hope i < 3

china unilaterally claims the entire south china sea as sovereign territory, then builds artificial islands to bolster its claim. it suddenly activates an air defense identification zone over the east china sea, and threatens to down any aircraft that does not report its position. it builds roads into indian territory, then redraws the maps to show that it is actually chinese territory. the people's republic under president xi jinping is quickly becoming the bully of asia.