Answer:
the second one is the answer
Thought christianity should be the basis of system reform. to creat social gospal he combined ideas from german socialism american progessivism
Union Pacific was responsible for the building of the rail lines from Kansas westward.
The Central pacific hired mostly Chinese immigrants to lay its lines. They also used their valuable knowledge of dynamite to help blast through the Rockies.
The railroad lines met at promontory point, Utah. Most of the line had been laid by the Union Pacific, but the Central Pacific had a much harder time getting through the mountains.
It helped end slavery by having people realize why it was bad so they could abolish slavery.
