Which of the following brought the u. s. economy out of the great depression?

a)world war i
b)world war ii
c)the korean war
d)the vietnam war

World War II brought the U.S. economy out of the Great Depression.

Option B

Explanation:

The American life during the war was in a situation to become worse easily, things at that time were at a poorly unbalanced state, food was rationed, taxes were high and jobs were dangerous. The "Second World War" provided a short term fix for the state of the United States economy. During the war everyone have job either in military or weapon manufacturing.  

WW2 not only ended the great depression but also increased the savings of the people.

a factory opens that mass-produces light bulbs.

explanation:

not sure if that's an answer to your questions but this is an example! : )