How did the united states try to european nations devastated by world war i?

The U.S. provided them with loans, it practiced dollar diplomacy with them, American gave them money free of charge, it rebuilt their industrial complexes.

Explanation:

The US tried to help European nations that were destroyed by World War 1 in different ways. There was so much money spent by the US government to help in restoring this nation and supporting their prosperity. They provided a loan to them.

500 books can be produced by one man and a printing press within 5 months, while a copyist can only produce one in the same amount of time

the answer would be:

b. race