Who helped to build the railway (workers) and what hardships did they face?

Which statement supporting restrictions on guns aligns with the supreme court's decision in a 1939 case? a. citizens should be required to have extensive training before they can own guns. b. gun control is needed to protect public safety, regardless of what the second amendment says. c. americans should not be able to keep guns in their homes. d. people should not be allowed to carry certain types of guns across state lines.

Idon't really understand the question. it counts for 20% of my lesson grade and i really need putting the answer into words. anything will . i need asap so im awarding 30 points.a disagreement between states of the united states concerning the rights of states vs. the authority of the national government led to the civil war. state governments were forced by war into a subservient position. what might happen if national governments ceded their authority to a world government by international treaty?

Brainliestttme : )how did the japanese economy recover so quickly after world war ii? -mass immigration to japan in an effort to rebuild -economic and educational reforms passed by the government- an economic partnership with korea and china- marshall plan dollars stimulated the japanese economy