How did the settlers who came to california after the construction of the transcontinental railroad overcome california’s geographic challenges? give two examples from the passage.

d is the best answer for this question.

treaties

explanation:

president thomas jefferson hoped that the embargo act of 1807 would the united states by demonstrating to britain and france their dependence on american goods, convincing them to respect american neutrality and stop impressing american seamen. instead, the act had a devastating effect on american trade.