9) Which of these would BEST describe the effect that inventions like the telegraph, steamboat, and railroads had
on life in early America?
A)
Inventions like these prevented people from migrating to other parts
of the United States.
B)
These inventions led to increased business productivity and economic
growth.
Inventions like these caused slavery to spread throughout the United
States.
C)
D
These inventions made it possible for new states like Kansas and
Missouri to join the Union.

what are the others?

it would be  

germany had to pay all damages related to the war.

and i think

germany had to take sole responsibility for the war.

when a country suffers, for example, a drought period, the market product is affected for a low offer, in this case, potatoes; the government has to tax to the households, which have to give more money for the potatoes which they consume, that situation make them consume substitute goods even through loans, it could increase the financial market movement and the inflationary phenomena, the business has to increase salaries in order to the employees could buy a more expensive food (potatoes) and in order to inflation tha business had to buy expensive supplies in the factor market, while the rest of the world have to gain more money to consume the same amount of potatoes.