How did tariffs negatively affect the global economy during the Great Depression?

AThey reduced the need to produce goods at home, leading to overreliance on imported goods.
BThey isolated countries' economies, drastically reducing international trade.
CThey discouraged factories from producing due to the lack of international competition.
DThey successfully raised demand on goods produced at home, which led to higher prices.

Verified Answer :

One way in which high tariffs negatively affected the global economy during the Great Depression was that "B. They isolated countries' economies, drastically reducing international trade," since this led to a sharp decrease in exports. 

Answer:

They isolated countries' economies, drastically reducing international trade.

Explanation: