The Great Depression caused serious inflation, so the answer is "Prices". Hope that helps!
They were most likely feeling proud spirtual and happy
This is shown in this part of the hymn.
Glory! Glory! Hallelujah! Glory! Glory! Hallelujah
Glory! Glory! Hallelujah! His truth is marching on
After the civil war, railroads connected the country on a national scale, boosting the economy and leading to mass production, mass consumption, and encouraging entrepreneurs.
C. They built the Terra-Cottta army to accompany an emperor in death
