Staying informed.
Citizens have the responsibility to stay informed of the issues affecting their communities, as well as national and international issues, and to be active in the civic processes.
The transcontinental railroad allowed for the transportation of goods over long distances. This was especially helpful for the industrial north at the time.
Number 18 would be "D".
Number 19 would be "A".
Number 20 would be "C".
Number 21 would be "C".
Number 22 would be "D".
Number 23 might be "C" I'm not sure, lol.