The most significant contributing factor to the Steel Strike of 1919 in the US was the end of World War I, which left many of those workers who had unionized in federal unions with less opportunities for work then prior and during the war.
C.
The document is advertising that slaves will be sold.
Smoking became very popular.
Changed diet kept people from starvation.
Corn fed livestock grew in places where other plants couldn't grow in
Slavery for sure. I believe the second one is economic differences between the North and the South.
I think the answer is D:) because classical means art or culture so I'm just guessing!